Let's write all the positive integer numbers one after another from $1$ without any delimiters (i.e. as a single string). It will be the infinite sequence starting with 123456789101112131415161718192021222324252627282930313233343536...

Your task is to print the $k$-th digit of this sequence.


-----Input-----

The first and only line contains integer $k$ ($1 \le k \le 10000$) — the position to process ($1$-based index).


-----Output-----

Print the $k$-th digit of the resulting infinite sequence.


-----Examples-----
Input
7

Output
7

Input
21

Output
5

Source: codeforces | Difficulty: EASY
Tags: Implementation


Solutions:
def main():
	req = ''.join((str(x) for x in range(1, 10001)))
	k = int(input())
	print(int(req[k - 1]))
main()


s = ''
for i in range(1, 10001):
	s += str(i)
k = int(input())
print(s[k - 1])


k = int(input())
temp = ''
for num in range(1, 10000):
	temp += str(num)
print(temp[k - 1])


s = ''
for i in range(1, 5000):
	s += str(i)
print(s[int(input()) - 1])


t = int(input())
i = 1
s = ''
while i <= t:
	s += str(i)
	i += 1
print(s[t - 1])


n = int(input())
ar = map(str, range(1, 10001))
s = ''
d = s.join(ar)
print(d[n - 1])


k = int(input())
i = 1
while k > 9 * i * 10 ** (i - 1):
	k -= 9 * i * 10 ** (i - 1)
	i += 1
j = (k - 1) // i
k = k - j * i
print(str(10 ** (i - 1) + j)[k - 1])


s = ''
for i in range(1, 3000):
	s += str(i)
k = int(input())
print(s[k - 1])


n = int(input())
sum = ''
i = 0
for i in range(40001):
	if len(sum) > n:
		break
	sum += str(i)
	i += 1
print(sum[n])


n = int(input())
s = 0
i = 1
c = 1
while s < n:
	s += 9 * i * c
	c += 1
	i *= 10
n = n - s + 9 * i * (c - 1) // 10
c = c - 1
r = n % c
d = n // c
k = 10 ** (c - 1) + d
if r == 0:
	print(int(str(k - 1)[-1]))
else:
	print(int(str(k)[r - 1]))


n = int(input())
step = 9
count = 0
digit = 1
while count + digit * step < n:
	count += digit * step
	step *= 10
	digit += 1
i = n - count
k = int((i + (digit - 1)) / digit)
num = 10 ** (digit - 1) + (k - 1)
j = digit - (i + digit - 1) % digit - 1
while j > 0:
	num = int(num / 10)
	j -= 1
print(num % 10)


import os
import sys
import math
from io import BytesIO, IOBase
from fractions import Fraction
import collections
from itertools import permutations
from collections import defaultdict
BUFSIZE = 8192

class FastIO(IOBase):
	newlines = 0

	def __init__(self, file):
		self._fd = file.fileno()
		self.buffer = BytesIO()
		self.writable = 'x' in file.mode or 'r' not in file.mode
		self.write = self.buffer.write if self.writable else None

	def read(self):
		while True:
			b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
			if not b:
				break
			ptr = self.buffer.tell()
			(self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr))
		self.newlines = 0
		return self.buffer.read()

	def readline(self):
		while self.newlines == 0:
			b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
			self.newlines = b.count(b'\n') + (not b)
			ptr = self.buffer.tell()
			(self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr))
		self.newlines -= 1
		return self.buffer.readline()

	def flush(self):
		if self.writable:
			os.write(self._fd, self.buffer.getvalue())
			(self.buffer.truncate(0), self.buffer.seek(0))

class IOWrapper(IOBase):

	def __init__(self, file):
		self.buffer = FastIO(file)
		self.flush = self.buffer.flush
		self.writable = self.buffer.writable
		self.write = lambda s: self.buffer.write(s.encode('ascii'))
		self.read = lambda : self.buffer.read().decode('ascii')
		self.readline = lambda : self.buffer.readline().decode('ascii')
(sys.stdin, sys.stdout) = (IOWrapper(sys.stdin), IOWrapper(sys.stdout))
input = lambda : sys.stdin.readline().rstrip('\r\n')
n = int(input()) - 1
(x, y) = (1, 9)
while n > x * y:
	(n, x, y) = (n - x * y, x + 1, y * 10)
a = str(10 ** (x - 1) + n // x)[n % x]
print(a)


import sys
numstring = ''
for k in range(1, 10001):
	numstring += str(k)
print(numstring[int(input()) - 1])


k = int(input())
n = 1
up_bnd = 9
while k > up_bnd:
	n += 1
	up_bnd += 9 * n * 10 ** (n - 1)
low_bnd = 0
for i in range(1, n):
	low_bnd += 9 * i * 10 ** (i - 1)
num = int((k - low_bnd) / n)
lb_val = 0
for i in range(n - 1):
	lb_val = lb_val * 10 + 9
num += lb_val
rm = (k - low_bnd) % n
if rm != 0:
	num += 1
ans = 0
if rm == 0:
	ans = num % 10
else:
	for i in range(n - rm + 1):
		j = num % 10
		num = int(num / 10)
		ans = j
print(int(ans))


s = ''.join([str(x) for x in range(1, 2778)])
print(s[int(input()) - 1])


n = int(input())
maxlength = 12
lengths = [1]
for i in range(1, maxlength + 1):
	lengths.append(lengths[i - 1] + 9 * i * 10 ** (i - 1))

def getnum(n):
	global lengths
	mx = maxlength - 1
	mn = 0
	while 1:
		chk = (mx - mn) // 2
		if chk == 0:
			break
		chk += mn
		if n < lengths[chk]:
			mx = chk
		else:
			mn = chk
	curlength = mx
	curlength_ind = n - lengths[curlength - 1]
	curdigind = curlength_ind % curlength
	beforenumscount = curlength_ind // curlength
	result = 0 + (beforenumscount // 10 ** (curlength - curdigind - 1) + (curdigind == 0)) % 10
	return result
print(getnum(n))


k = int(input())
s = ''
for i in range(1, 10001):
	if len(s) >= 10000:
		break
	s += str(i)
print(s[k - 1])


s = []
k = int(input())
for i in range(1, k + 1):
	s.append(i)
s = ''.join(map(str, s))
print(s[k - 1])


x = int(input())
z = []
for n in range(1, x + 1):
	z += [int(k) for k in str(n)]
print(z[x - 1])


n = int(input())
s = ''
for i in range(1, n + 1):
	s = s + str(i)
print(s[n - 1])


k = int(input()) - 1
l = 1
c = 9
while k >= c * l:
	k -= c * l
	l += 1
	c *= 10
c = 10 ** (l - 1) + k // l
print(str(c)[k % l])


k = int(input(''))
y = 9
x = 1
i = 2
m = 0
if k < 10:
	print(k)
else:
	while k > y:
		h = y
		y = y + 9 * i * 10 ** x
		x += 1
		i += 1
	z = 10 ** (i - 1) + (k - y - 1) // (i - 1)
	q = (k - h - 1) % (i - 1)
	print(str(z)[q])


list = []
n = int(input())
for i in range(1, 10000):
	list.append(i)
str_join = ''.join((str(x) for x in list))
print(str_join[n - 1])


import os
import sys
from io import BytesIO, IOBase
BUFSIZE = 8192

class FastIO(IOBase):
	newlines = 0

	def __init__(self, file):
		self._fd = file.fileno()
		self.buffer = BytesIO()
		self.writable = 'x' in file.mode or 'r' not in file.mode
		self.write = self.buffer.write if self.writable else None

	def read(self):
		while True:
			b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
			if not b:
				break
			ptr = self.buffer.tell()
			(self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr))
		self.newlines = 0
		return self.buffer.read()

	def readline(self):
		while self.newlines == 0:
			b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
			self.newlines = b.count(b'\n') + (not b)
			ptr = self.buffer.tell()
			(self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr))
		self.newlines -= 1
		return self.buffer.readline()

	def flush(self):
		if self.writable:
			os.write(self._fd, self.buffer.getvalue())
			(self.buffer.truncate(0), self.buffer.seek(0))

class IOWrapper(IOBase):

	def __init__(self, file):
		self.buffer = FastIO(file)
		self.flush = self.buffer.flush
		self.writable = self.buffer.writable
		self.write = lambda s: self.buffer.write(s.encode('ascii'))
		self.read = lambda : self.buffer.read().decode('ascii')
		self.readline = lambda : self.buffer.readline().decode('ascii')
(sys.stdin, sys.stdout) = (IOWrapper(sys.stdin), IOWrapper(sys.stdout))
input = lambda : sys.stdin.readline().rstrip('\r\n')
for t in range(1):
	string = ''
	for i in range(1, 10002):
		string += str(i)
	n = int(input())
	print(string[n - 1])


k = int(input())
total_digit = 0
digit = 1
while k > total_digit + digit * (pow(10, digit) - pow(10, digit - 1)):
	total_digit += digit * (pow(10, digit) - pow(10, digit - 1))
	digit += 1
remaining = k - total_digit - 1
corr_num = str(pow(10, digit - 1) + remaining // digit)
print(corr_num[remaining % digit])


p = int(input())
s = ''
for i in range(10000):
	s += str(i)
print(s[p])


n = int(input()) - 1
(x, y) = (1, 9)
while n > x * y:
	(n, x, y) = (n - x * y, x + 1, y * 10)
a = str(10 ** (x - 1) + n // x)[n % x]
print(a)


s = ''
i = 1
while len(s) < 10000:
	s += str(i)
	i += 1
print(s[int(input()) - 1])


s = ''
for i in range(10000):
	s += str(i)
n = int(input())
print(s[n])


def f(r, k, x):
	s = ''
	w = 10 ** (r - 1)
	j = x
	while j <= k:
		s += str(w)
		w += 1
		j += r
	return s[k - x]
k = int(input())
if k <= 9:
	print(k)
elif 10 <= k <= 189:
	print(f(2, k, 10))
elif 190 <= k <= 2889:
	print(f(3, k, 190))
elif 2890 <= k <= 38889:
	print(f(4, k, 2890))
elif 38890 <= k <= 488889:
	print(f(5, k, 38890))
elif 488890 <= k <= 5888889:
	print(f(6, k, 488890))
elif 5888890 <= k <= 68888889:
	print(f(7, k, 5888890))
elif 68888890 <= k <= 788888889:
	print(f(8, k, 68888890))
elif 788888890 <= k <= 8888888889:
	print(f(9, k, 788888890))
elif 8888888890 <= k <= 98888888889:
	print(f(10, k, 8888888890))
else:
	print(f(11, k, 98888888890))


k = int(input())
s = ''
i = 1
while len(s) < k + 10:
	s += str(i)
	i += 1
k -= 1
print(s[k])


s = '1'
n = int(input())
for i in range(2, 5000):
	s = s + str(i)
print(s[n - 1])


n = int(input())
res = ''
i = 0
while len(res) <= n:
	res += str(i)
	i += 1
print(res[n])


import math
n = int(input())
k = 1
while n > 9 * k * 10 ** (k - 1):
	n = n - 9 * k * 10 ** (k - 1)
	k = k + 1
remainder = n % k
if remainder == 0:
	remainder = k
if k == 1:
	quoteint = math.ceil(n / k)
else:
	adder = '9' * (k - 1)
	adder = int(adder)
	quoteint = math.ceil(n / k) + adder
print(str(quoteint)[remainder - 1])


a = []
i = 1
while len(a) <= 10000:
	l = str(i)
	for p in l:
		a.append(p)
	i += 1
g = int(input())
print(a[g - 1])


import sys
k = int(input())
d = [0]
for i in range(1, 12):
	d.append((10 ** i - 10 ** (i - 1)) * i + d[i - 1])
for i in range(1, len(d)):
	if k <= d[i]:
		f = d[i - 1]
		f1 = 10 ** (i - 1)
		print(str((k - f - 1) // i + f1)[(k - f - 1) % i])
		sys.exit()


import sys

class ADigitsSequenceEasyEdition:

	def solve(self):
		k = int(input()) + 1
		p = 1
		c = 0
		while c + p * (10 ** p - (10 ** (p - 1) if p > 1 else 0)) < k:
			c += p * (10 ** p - (10 ** (p - 1) if p > 1 else 0))
			p += 1
		k -= c
		bef = (10 ** (p - 1) if p > 1 else 0) + (k - 1) // p
		print(str(bef)[(k - 1) % p], end='')
solver = ADigitsSequenceEasyEdition()
input = sys.stdin.readline
solver.solve()


n = int(input())
seq = []
for i in range(9000):
	num = [int(x) for x in str(i)]
	for j in num:
		seq.append(j)
print(seq[n])


k = int(input())
s = ''
a = 1
while len(s) < k:
	s += str(a)
	a += 1
print(s[k - 1])


n = int(input())
sequence = 0
digit = 0
while True:
	digit += 1
	a = 10 ** (digit - 1)
	b = int('9' * digit)
	sequence = (b - a + 1) * digit
	if n < sequence:
		break
	else:
		n -= sequence
rem = n % digit
order = n // digit
if rem != 0:
	x = 1
else:
	x = 0
term = str(a + (order + x - 1))
print(term[rem - 1])


k = int(input())
c = ''
i = 1
while len(c) <= k:
	c += str(i)
	i += 1
print(c[k - 1])


k = int(input(''))
a = [9]
i = 1
if k < 10:
	print(k)
else:
	while k > a[-1]:
		a.append((10 ** (i + 1) - 10 ** i) * (i + 1) + a[i - 1])
		i += 1
	cat = len(a)
	diff = k - a[-2]
	step = int(diff / cat)
	rem = diff % cat
	if rem == 0:
		number = 10 ** (cat - 1) - 1 + step
		print(str(number)[-1])
	else:
		number = 10 ** (cat - 1) + step
		print(str(number)[rem - 1])


S = ''
for i in range(1, 10001):
	S += str(i)
print(S[int(input()) - 1])


a = ''
x = int(input())
for i in range(1, x + 1):
	a += str(i)
print(a[x - 1])


s = '0'
for i in range(1, 10000):
	s += str(i)
print(s[int(input())])


def main():
	q = int(input())
	s = ''
	for i in range(1, 5001):
		s = s + str(i)
	print(s[q - 1])
main()


sum = [0 for i in range(12)]
i = 0
while sum[i] < 10 ** 12:
	i += 1
	sum[i] = sum[i - 1] + i * (10 ** i - 10 ** (i - 1))
k = int(input())
i = 0
while k > sum[i]:
	i += 1
ans = 10 ** (i - 1) - 1
ans += (k - sum[i - 1]) // i
if (k - sum[i - 1]) % i != 0:
	ans += 1
print(str(ans)[(k - sum[i - 1]) % i - 1])


k = int(input())
c = 0
for i in range(1, 10000):
	i_str = str(i)
	c += len(i_str)
	if c - len(i_str) < k <= c:
		print(i_str[len(i_str) + k - c - 1])
		break


l = list(map(str, range(1, 10001)))
l = ''.join(l)
n = int(input())
print(l[n - 1])


print(''.join(map(str, range(1, 3000)))[int(input().strip()) - 1])


a = set(range(0, 10001))
x = str(a)
x = x.replace(',', '')
x = x.replace(' ', '')
x = x.replace('{', '')
x = x.replace('}', '')
x1 = int(input(' '))
print(x[x1])


a = int(input())
s = ''
for i in range(1, a + 1):
	s += str(i)
print(s[a - 1])


e = ''
for i in range(1, 10000):
	e = e + str(i)
n = int(input())
print(e[n - 1])


num = ''
count = 1
k = int(input())
while len(num) <= k:
	num += str(count)
	count += 1
print(num[k - 1])


k = int(input())
ans = ''
for i in range(10001):
	ans += str(i + 1)
print(ans[k - 1])


k = ''.join(map(str, range(10000)))
print(k[int(input())])


a = int(input())
c = [1] * 30
for i in range(1, 20):
	c[i] = 9 * i * pow(10, i - 1)
for i in range(1, 15):
	if a > c[i]:
		a -= c[i]
	else:
		d = int((a - 1) / i + pow(10, i - 1) - 1)
		e = (a - 1) % i + 1
		f = str(d + 1)
		print(f[e - 1])
		exit()


print(''.join(map(str, range(9999)))[int(input())])


pre_cal_sum_dec = {}

def sum_dec(n):
	global pre_cal_sum_dec
	try:
		return pre_cal_sum_dec[n]
	except:
		sumer = 0
		for i in range(1, n):
			sumer += 10 ** i
		pre_cal_sum_dec[n] = sumer
		return sumer

def find_head(digits):
	if digits < 1:
		return 0
	elif digits == 1:
		return 1
	else:
		return (digits - 1) * 10 ** (digits - 1) - sum_dec(digits - 1)
list_of_head = [find_head(i) for i in range(18)]

def finder(number):
	(x, i) = (0, 1)
	if number == 1:
		return 1
	for x in list_of_head[1:]:
		if x > number:
			break
		bef = x
		i += 1
	if x == number:
		return 1
	e = i - 1
	number = number - bef
	interval = e * 10 ** (e - 1)
	col = number % e
	if col == 0:
		return (number // interval + 1) % 10
	return number // (e * 10 ** (e - 1 - col)) % 10
print(finder(int(input())))


n = int(input())

def find(n):
	(y, x) = (-1, 10000000000000)
	while y + 1 != x:
		m = (y + x) // 2
		if con(m) >= n:
			x = m
		else:
			y = m
	return str(x)[n - con(y) - 1]

def con(x):
	(s, q, z) = (0, 1, 0)
	while x != 0:
		z = min(x, 9 * 10 ** (q - 1))
		x = x - z
		s += z * q
		q += 1
	return s
print(find(n))


n = int(input())
s = ''
for u in range(1, n + 1):
	s += str(u)
print(s[n - 1])


def f(n):
	kakn = 9
	n -= 1
	chisl = 1
	while kakn < n:
		kakn += 9 * 10 ** chisl * (chisl + 1)
		chisl += 1
		if n - kakn == 2:
			return 0
	t = kakn - 9 * 10 ** (chisl - 1) * chisl
	n -= t
	p = n // chisl
	u = n % chisl
	o = str(10 ** (chisl - 1) + p)
	return o[u]
n = int(input())
print(f(n))


n = int(input())
i = 0
s = 0
while True:
	temp = (i + 1) * 9 * 10 ** i
	if s + temp <= n:
		s += temp
		i += 1
	else:
		break
tc = n - s
nd = tc // (i + 1) - 1
tc -= (nd + 1) * (i + 1)
f = 10 ** i + nd
if tc != 0:
	print(str(10 ** i + nd + 1)[tc - 1])
else:
	print(str(10 ** i + nd)[-1])


n = int(input())
ch = ''
i = 1
while len(ch) < n:
	ch = ch + str(i)
	i += 1
print(ch[n - 1])


n = int(input()) - 1
i = 0
while n >= 9 * (i + 1) * 10 ** i:
	n -= 9 * (i + 1) * 10 ** i
	i += 1
a = int(pow(10, i)) + int(n / (i + 1))
print(str(a)[n % (i + 1)])


d = [i for i in range(0, 10001)]
for i in range(len(d)):
	d[i] = str(d[i])
d = ''.join(d)
p = int(input())
print(d[p])


a = int(input())
b = ''
for i in range(1, 10000):
	b += str(i)
print(b[a - 1])


k = int(input())
s = ''
for i in range(1, 10000):
	s += str(i)
print(s[k - 1])


N = int(input())
beg = 0
end = 9
i = 0
while N > end:
	i += 1
	(beg, end) = (end, end + (i + 1) * 9 * 10 ** i)
n = N - beg - 1
lvl = i - n % (i + 1)
period = (i + 1) * 10 ** lvl
res = n // period % 10
if lvl == i:
	res += 1
print(res)


a = ''
x = 1
while len(a) <= 10001:
	a += str(x)
	x += 1
n = int(input())
print(int(a[n - 1]))


s = ''
k = int(input())
for i in range(1, 10000):
	if len(s) >= k:
		print(s[k - 1])
		exit()
	s += str(i)


__author__ = 'Esfandiar'
n = int(input())
i = 1
s = ''
while i <= n:
	s += str(i)
	i += 1
print(s[n - 1])


k = int(input())
s = 1
i = 1
while s <= k:
	s = s + 9 * i * 10 ** (i - 1)
	i = i + 1
i = i - 1
s = s - 9 * i * 10 ** (i - 1)
t = i - (k - s) % i
n = 10 ** (i - 1) + int((k - s) / i)
while t:
	r = n % 10
	n = int(n / 10)
	t = t - 1
print(r)


def sequence(n):
	s = ''
	for i in range(1, 10001):
		s += str(i)
	return s[n - 1]
print(sequence(int(input())))


k = int(input())
if k <= 9:
	print(k)
else:
	num_arr = [9 * (i + 1) * 10 ** i for i in range(11)]
	index = 0
	while True:
		if k <= num_arr[index]:
			break
		else:
			k -= num_arr[index]
			index += 1
	digit = index + 1
	k += digit - 1
	num = k // digit
	offset = k % digit
	string_num = str(10 ** (digit - 1) + num - 1)
	print(string_num[offset])


k = int(input(''))
t = 0
if k == 0:
	print('Invalid input')
	exit()
d = 0
e = 0
n = 5
while 1:
	u = 9 * n * 10 ** n + 1 - 10 ** n - 9 * k
	if u > 0:
		d += 1
		if e > 0:
			u = i
			break
		n = n - 1
	elif u < 0:
		i = u
		e += 1
		if d > 0:
			n = n + 1
			break
		n = n + 1
	else:
		print(9)
		exit()
import math
u = abs(u)
u = u // 9
m = u // n
p = u % n
if p == 0:
	q = 10 ** (n - 1) + m - 1
	o = q % 10
else:
	q = 10 ** (n - 1) + m
	o = q // 10 ** (n - p) % 10
print(o)


lists = list((str(i) for i in range(1, 10001)))
lists = ''.join(lists)
n = int(input())
print(lists[n - 1])


s = ''
for i in range(10000):
	s += str(i)
ind = int(input())
print(s[ind])


n = int(input())
check = True
t = 0
tnext = 9
count = 1
i = 1
j = 1
res = 0
while check:
	if n <= tnext:
		res = n - t
		check = False
	else:
		count = count + 1
		if t != 0:
			t = t + 9 * i * j
		else:
			t = 9
		tnext = tnext + 9 * (i + 1) * (j * 10)
		i = i + 1
		j = j * 10
num1 = int(res / count)
num2 = res % count
des = pow(10, count - 1)
despac = des + num1
if num2 == 0:
	despac = str(despac - 1)
	print(despac[-1])
else:
	despac = str(despac)
	print(despac[num2 - 1])


n = int(input())
st = ''
le = 0
for i in range(1, 100000 + 1):
	st += str(i)
	le += len(str(i))
	if le >= n:
		break
j = le - n
print(st[-j - 1])


k = int(input(''))
ch = ''
for i in range(1, k + 1):
	ch += str(i)
print(ch[k - 1])


l = []
for i in range(1, 10000):
	l.append(str(i))
n = int(input())
s = ''.join(l)
print(s[n - 1])


k = int(input())
rs = ''
for i in range(1, k + 1, 1):
	tmp = str(i)
	rs += tmp
print(rs[k - 1])


k = int(input())
i = 0
while k > 0:
	i += 1
	k -= len(str(i))
i = str(i)
print(i[len(i) - 1 + k])


ST = ''
for i in range(1, 10001):
	ST += str(i)
print(ST[int(input()) - 1])


n = int(input())
if n <= 9:
	print(n)
else:
	i = 0
	while (n - 9 * 10 ** i * (i + 1) > 0) & (i <= 11):
		n = n - 9 * 10 ** i * (i + 1)
		i = i + 1
	r = n % (i + 1)
	p = n // (i + 1)
	d = 10 ** i + p - 1
	if r != 0:
		d = d + 1
	ch = str(d)
	print(ch[r - 1])


s = input()
res = ''
for i in range(int(s) + 1):
	if len(res) <= int(s):
		res += str(i)
	else:
		break
print(res[int(s)])


n = int(input())
limit_int = limit = decimal = 9
count = 0
while True:
	count += 1
	if n <= limit:
		difference = limit - n
		position = difference % count
		difference = difference // count
		difference = decimal - difference
		print(''.join(list(reversed(str(difference))))[position])
		break
	else:
		decimal = int(str(limit_int) * (count + 1))
		limit += int(str(limit_int) + '0' * count) * (count + 1)


k = int(input())
s = ''
i = 1
while i <= k:
	s += str(i)
	i += 1
print(s[k - 1])


a = ''
i = 1
n = int(input())
while len(a) < 10000:
	a += str(i)
	i += 1
print(a[n - 1])


from sys import stdin, stdout
from collections import *
from math import gcd, floor, ceil

def st():
	return list(stdin.readline().strip())

def li():
	return list(map(int, stdin.readline().split()))

def mp():
	return map(int, stdin.readline().split())

def inp():
	return int(stdin.readline())

def pr(n):
	return stdout.write(str(n) + '\n')
mod = 1000000007
INF = float('inf')

def solve():
	n = inp() - 1
	pre = 0
	cur = 1
	point = 1
	while pre + 9 * cur * point < n:
		pre += 9 * cur * point
		cur *= 10
		point += 1
	n -= pre
	(num, pos) = divmod(n, point)
	num += pow(10, point - 1)
	pr(str(num)[pos])
for _ in range(1):
	solve()


t = int(input())
k = ''
for i in range(1, 10000 + 1):
	k = k + str(i)
print(k[t - 1])


k = int(input())
num_digits = 1
num_numbers = 9
k -= 1
while k > num_digits * num_numbers:
	k -= num_numbers * num_digits
	num_digits += 1
	num_numbers *= 10
number = 10 ** (num_digits - 1) + k // num_digits
index = k % num_digits
answer = str(number)[index]
print(answer)


import math

def countDigit(n):
	return math.floor(math.log(n, 10) + 1)
n = int(input())
count = countDigit(n)
if count == 1:
	print(n)
else:
	low = 1
	high = 9
	sum = []
	digit = 0
	sum.append(0)
	sum.append(9)
	for i in range(2, 16):
		low = low * 10
		high = high * 10 + 9
		sum.append((high - low + 1) * i + sum[i - 1])
		if n < sum[i]:
			digit = i
			break
	x = n - sum[digit - 1]
	q = x / digit
	r = x % digit
	low = math.pow(10, digit - 1)
	low = low + q - 1
	if r == 0:
		print(int(low % 10))
	else:
		n = low + 1
		stringnum = str(n)
		print(int(stringnum[r - 1]))


k = int(input())
print(''.join((str(t) for t in range(1, k + 1)))[k - 1])


k = int(input())
r = ''.join(list(map(str, range(1, k + 1))))
print(r[k - 1])


k = int(input())
c = 1
i = 0
s = ''
while True:
	s += str(c)
	if c < 10:
		i += 1
	elif c >= 10 and c < 100:
		i += 2
	elif c >= 100 and c < 1000:
		i += 3
	elif c >= 1000 and c < 10000:
		i += 4
	else:
		i += 5
	if i >= k:
		print(s[k - 1])
		break
	c += 1


k = int(input())
ans = []
for i in range(1, k + 1):
	for j in str(i):
		ans.append(int(j))
print(ans[k - 1])


k = int(input())
x = ''.join([str(i) for i in range(5000)])
print(x[k])


k = int(input())
mul = 1
d = 1
while k > mul * 9 * d:
	k -= mul * 9 * d
	d += 1
	mul *= 10
x = k % d
y = k // d
y += mul
if x == 0:
	print((y - 1) % 10)
else:
	y = y // pow(10, d - x)
	print(y % 10)


from math import pow
n = int(int(input()) - 1)
x = 1
y = 9
while n > x * y:
	n -= x * y
	x += 1
	y *= 10
a = int(pow(10, x - 1)) + int(n / x)
z = str(a)
which = n % x
print(z[which])


num = input()
num = int(num)
lst = []
i = 1
count = 0
index = -1
while count < num:
	strI = str(i)
	strI = list(strI)
	for n in range(0, len(strI)):
		lst.append(strI[n])
	if i >= 1000:
		count += 4
	elif i >= 100:
		count += 3
	elif i >= 10:
		count += 2
	else:
		count += 1
	i += 1
if count != num:
	diff = count - num
	index -= diff
ans = lst[index]
finalAns = ''.join(ans)
print(finalAns)


a = [i for i in range(0, 10001)]
for i in range(len(a)):
	a[i] = str(a[i])
a = ''.join(a)
k = int(input())
print(a[k])


strr = ''
a = 1
while len(strr) <= 10000:
	strr += str(a)
	a += 1
print(strr[int(input()) - 1])


print(''.join(map(str, range(3000)))[int(input())])


k = int(input())
c = 0
for i in range(1, 10000):
	s = str(i)
	c = c + len(s)
	if c >= k:
		break
	else:
		continue
b = str(i)
if c == k:
	print(b[len(b) - 1])
else:
	print(b[len(b) - (c - k) - 1])


import sys
k = int(input())
if type(k) != int or k <= 0 or k > pow(10, 12):
	print('wrong input. try again')
	sys.exit()
lim_init = lim = decimal = 9
c = 0
while True:
	c += 1
	if k <= lim:
		diff = lim - k
		pos = diff % c
		diff = int(diff / c)
		diff = decimal - diff
		print(''.join(list(reversed(str(diff))))[pos])
		break
	else:
		decimal = int(str(lim_init) * (c + 1))
		lim += int(str(lim_init) + '0' * c) * (c + 1)


t = ''
a = int(input())
for k in range(1, a + 5):
	if len(t) < a:
		t += str(k)
	else:
		print(t[a - 1])
		break


n = int(input())
a = '0'
for i in range(1, n + 1):
	a += str(i)
print(a[n])


k = int(input())
a = ''
i = 0
while True:
	a = a + str(i)
	i += 1
	if len(a) > k:
		break
print(a[k])


a = int(input())
i = 1
lst = []
j = 0
v = ''
while i <= 10001:
	lst.append(i)
	i = i + 1
while j < 10001:
	v = v + str(lst[j])
	j = j + 1
k = list(str(v))
print(int(k[a - 1]))


n = int(input())
if n <= 9:
	print(n)
	exit(0)
a = 9
b = 1
while True:
	if n > b * a:
		n = n - b * a
		a *= 10
		b += 1
	else:
		break
dig = 10 ** (b - 1)
q = (n - 1) // b
r = (n - 1) % b
num = dig + q
print(str(num)[r])


k = int(input())
test = ''
for i in range(1, k + 1):
	test = test + str(i)
print(test[k - 1])


N = int(input())
terms = 1
n = 9
total = 0
while N > terms * n:
	N = N - terms * n
	total = total + n
	terms = terms + 1
	n = n * 10
print(str(total + (N + terms - 1) // terms)[(N - 1) % terms])


def totaller(i):
	if i == 0:
		return 0
	else:
		total1 = totaller(i - 1) + 9 * 10 ** (i - 1) * i
		return total1
no_of_digits = int(input())
j = 0
for i in range(1, 13):
	if no_of_digits >= totaller(i):
		j = i
kth_digit = (no_of_digits - totaller(j)) // (j + 1)
if (no_of_digits - totaller(j)) % (j + 1) != 0:
	answer = str(kth_digit + 10 ** j)
	print(answer[(no_of_digits - totaller(j)) % (j + 1) - 1])
else:
	answer = str(kth_digit + 10 ** j - 1)
	print(answer[(no_of_digits - totaller(j)) % (j + 1) - 1])


k = int(input())
if k <= 9:
	print(k)
elif k <= 189:
	k -= 9
	tem = int((k + 1) // 2) + 9
	if k % 2 == 0:
		print(int(tem % 10))
	elif k % 2 == 1:
		print(int(tem // 10))
elif k <= 2889:
	k -= 189
	tem = int((k + 2) // 3) + 99
	if k % 3 == 0:
		print(tem % 10)
	elif k % 3 == 1:
		print(int(tem / 100))
	elif k % 3 == 2:
		tem = int(tem / 10)
		print(tem % 10)
else:
	k -= 2889
	tem = int((k + 3) // 4) + 999
	if k % 4 == 0:
		print(tem % 10)
	elif k % 4 == 1:
		print(int(tem / 1000))
	elif k % 4 == 2:
		tem = int(tem / 100)
		print(tem % 10)
	elif k % 4 == 3:
		tem = int(tem / 10)
		print(tem % 10)


def f(x):
	(dig, cnt) = (1, 9)
	ans = 0
	while dig != len(str(x)):
		ans += dig * cnt
		dig += 1
		cnt *= 10
	ans += (x - cnt // 9 + 1) * dig
	return ans
k = int(input())
(l, r) = (1, 1000000000000)
if k == 1:
	print(1)
	return
while l < r:
	mid = l + r + 1 >> 1
	if f(mid) < k:
		l = mid
	else:
		r = mid - 1
k -= f(l)
l += 1
print(str(l)[k - 1])


n = int(input())
d_sep = ''.join(map(lambda v: str(v), range(1, 10001)))
print(d_sep[n - 1])


idx = {}
idx[0] = 0
s = 0
num = 9
for digit in range(1, 12):
	s += num * digit
	idx[digit] = s
	num = num * 10
N = int(input())
nubmer = 0
r = 0
d = 0
for digit in range(1, 12):
	if N <= idx[digit] and N > idx[digit - 1]:
		number = (N - idx[digit - 1]) // digit
		r = (N - idx[digit - 1]) % digit
		d = digit
		break
if r != 0:
	number += 1
num = 10 ** (d - 1) + number - 1
digit = [int(i) for i in str(num)]
if r == 0:
	print(digit[-1])
else:
	print(digit[r - 1])


string = ''
for i in range(1, 10001):
	string += str(i)
k = int(input())
print(string[k - 1])


s = ''
for i in range(1, 2778):
	s = s + str(i)
print(s[int(input()) - 1])


k = int(input())
(s, n) = ('', 1)
while len(s) < k:
	s += str(n)
	n += 1
print(s[k - 1])


from sys import stdin, setrecursionlimit, stdout
from collections import deque
from math import sqrt, floor, ceil, log, log2, log10, pi, gcd, sin, cos, asin
from heapq import heapify, heappop, heappush, heapreplace, heappushpop
from bisect import bisect_right, bisect_left

def ii():
	return int(stdin.readline())

def fi():
	return float(stdin.readline())

def mi():
	return map(int, stdin.readline().split())

def fmi():
	return map(float, stdin.readline().split())

def li():
	return list(mi())

def si():
	return stdin.readline().rstrip()

def lsi():
	return list(si())
mod = 1000000007
res = ['NO', 'YES']
aa = [9, 99, 999, 9999, 99999, 999999, 9999999, 99999999, 999999999, 9999999999]
a = [9, 189, 2889, 38889, 488889, 5888889, 68888889, 788888889, 8888888889, 98888888889, 1088888888889]
test = 1
test_case = 1
while test <= test_case:
	test += 1
	n = ii()
	if n in a:
		n = 9
	if n < 10:
		print(n)
		exit()
	x = 1
	while a[x] < n:
		x += 1
	v = n - a[x - 1]
	z = v // (x + 1)
	z += aa[x - 1]
	v %= x + 1
	if not v:
		p = z % 10
	else:
		z += 1
		p = int(str(z)[v - 1])
	print(p)


n = int(input())
st = ''
for i in range(1, n + 1):
	st += str(i)
print(st[n - 1])


n = int(input())
l = ''
for i in range(1, n + 1):
	l += str(i)
print(l[n - 1])


import sys, collections
pat = ''
for i in range(1, 10001):
	pat += str(i)
print(pat[int(sys.stdin.readline()) - 1])


digit = 1
x = int(input())
start_range = 1
end_range = 9
nine = 9
total = 0
while x > end_range:
	start_range = end_range + 1
	digit += 1
	end_range += digit * nine * pow(10, digit - 1)
	total = total + start_range
start = pow(10, digit - 1)
number = int((x - start_range) / digit)
index = int((x - start_range) % digit)
start = start + number
string = str(start)
print(string[index])


k = int(input())
nc = [0 for i in range(14)]
for i in range(1, 14):
	nc[i] += nc[i - 1] + 9 * 10 ** (i - 1) * i
for i in range(13):
	if nc[i] < k <= nc[i + 1]:
		cif = i + 1
if cif == 1:
	print(k)
	quit()
c = k - nc[cif - 1]
if c % cif == 0:
	nnr = c // cif
	ncif = cif
else:
	nnr = 1 + c // cif
	ncif = c % cif
number = nnr + 10 ** (cif - 1) - 1
while cif != ncif:
	number //= 10
	cif -= 1
print(number % 10)


(a, b, c, d, e, f, g, h, i, j, k, l) = [9 * 1, 90 * 2, 900 * 3, 9000 * 4, 90000 * 5, 900000 * 6, 9000000 * 7, 90000000 * 8, 900000000 * 9, 9000000000 * 10, 90000000000 * 11, 900000000000 * 12]
a = a
b = a + b
c = b + c
d = c + d
e = d + e
f = e + f
g = f + g
h = g + h
i = h + i
j = i + j
k = j + k
l = k + l
li1 = [0, a, b, c, d, e, f, g, h, i, j, k, l]
n = int(input())
nn = 0
for ii in range(1, 12):
	if li1[ii - 1] < n and li1[ii + 1] > n:
		nn = ii
n = n - li1[nn - 1]
r1 = 10 ** (nn - 1)
n1 = n // nn
r1 += n1 - 1
n2 = n - n1 * nn
if n2 == 0:
	print(str(r1)[-1])
else:
	print(str(r1 + 1)[n2 - 1])


k = int(input())
total = 0
for i in range(1, k + 1):
	total += len(str(i))
	if total >= k:
		break
req = total - k
print(str(i)[-1 - req])


a = ''
for i in range(1, 9999):
	a += str(i)
print(a[int(input()) - 1])


target = int(input())
b = ''
num = 0
while len(b) < target:
	num = num + 1
	b = b + str(num)
print(b[target - 1])


n = int(input())
if n < 10:
	print(n)
else:
	l = [str(x) for x in range(1, n + 1)]
	string = ''.join(l)
	print(string[n - 1])


n = int(input())
i = 1
s = 0
while i * 9 * 10 ** (i - 1) < n - s:
	s += i * 10 ** (i - 1) * 9
	i += 1
n -= s
j = n // i
k = n % i
if k is 0:
	ind = i - 1
else:
	ind = k - 1
print(str(10 ** (i - 1) + j - 1 + (k > 0))[ind])


def n_to_array(number):
	str_number = str(number)
	arr_number = []
	for digit in str_number:
		arr_number.append(int(digit))
	return arr_number

def n_digits(number):
	if number == 0:
		return 1
	n = 0
	while number > 0:
		n += 1
		number = number // 10
	return n

def _1177A(k):
	if k < 10:
		print(k)
		return
	k -= 9
	a = 10
	b = 99
	while (b - a + 1) * n_digits(a) < k:
		k -= (b - a + 1) * n_digits(a)
		a *= 10
		b *= 10
		b += 9
	nr = a + (k + n_digits(a) - 1) // n_digits(a) - 1
	ord = (k - 1) % n_digits(a)
	print(n_to_array(nr)[ord])
_1177A(int(input()))


X = ''
N = int(input())
for i in range(1, N + 1):
	X += str(i)
print(X[N - 1])


(cnt, s) = (1, '')
while len(s) < 10000:
	(cnt, s) = (cnt + 1, s + str(cnt))
print(s[int(input()) - 1])


n = int(input())
s = ''
i = 0
while len(s) <= n:
	s += str(i)
	i += 1
print(s[n])


from math import floor
from sys import stdin
CONST = 9

def solve(k):
	i = 0
	while k > CONST * 10 ** i * (i + 1):
		k -= floor(CONST * 10 ** i) * (i + 1)
		i += 1
	num_digits = i + 1
	num = floor((k - 1) / num_digits)
	num += floor(10 ** i)
	print('{}'.format(num)[(k - 1) % num_digits])
for line in stdin:
	solve(int(line.rstrip()))


k = int(input())
count = 1
number = 1
result = 0
number1 = 1
while True:
	if number == 1:
		if result + 9 < k:
			result += 9
			number = 20
			number1 = 10
		else:
			break
	elif number == 20:
		if result + 180 < k:
			result += 180
			number += 10
			number1 = 100
		else:
			break
	elif result + 9 * number * 10 ** count < k:
		result += 9 * number * 10 ** count
		number += 10
		count += 1
		number1 *= 10
	else:
		break
while True:
	if count == 0:
		break
	if result + number * 10 ** count < k:
		result += number * 10 ** count
		number1 += 100 * 10 ** (count - 1)
	else:
		count -= 1
while True:
	if number == 1:
		break
	if result + number < k:
		result += number
		number1 += 10
	else:
		break
while True:
	if result + len(str(number1)) >= k:
		print(str(number1)[k - result - 1])
		break
	else:
		number1 += 1
		result += len(str(number1))


import math
k = int(input())
s = ''
i = 1
while len(s) < k:
	s += str(i)
	i += 1
print(s[k - 1])


k = int(input()) - 1
w = 1
p = 9
while k >= w * p:
	k -= w * p
	w += 1
	p *= 10
x = p // 9 + k // w
print(str(x)[k % w])


k = int(input())
p = ''
for i in range(3500):
	p += str(i)
print(p[k])


import sys, math, queue, bisect
MOD = 998244353
sys.setrecursionlimit(1000000)
n = int(input())
if n < 10:
	print(n)
	exit()
d = 1
while n > 9 * d * pow(10, d - 1):
	n -= 9 * d * pow(10, d - 1)
	d += 1
x = pow(10, d - 1) + (n - 1) // d
p = n % d
x = str(x).zfill(d)
print(x[p - 1])


k = int(input())
s = 0
i = 1
while s + i * (9 * pow(10, i - 1)) < k:
	s += i * (9 * pow(10, i - 1))
	i += 1
else:
	i -= 1
k = k - s - 1
x = k // (i + 1)
y = k % (i + 1)
x = pow(10, i) + x
ss = str(x)
print(ss[y])


A = [9, 189, 2889, 38889, 488889, 5888889, 68888889, 788888889, 8888888889, 98888888889, 1088888888889]
k = int(input())
if k < 10:
	print(k)
else:
	for n in range(0, 12):
		if k > A[n + 1]:
			continue
		else:
			a = 10 ** (n + 1) + (k - A[n] - 1) // (n + 2)
			b = (k - A[n] - 1) % (n + 2)
			print(str(a)[b])
			break


n = ''
for i in range(1, 100001, 1):
	n += str(i)
k = int(input())
print(n[k - 1])


k = int(input())
s = ''
id = 1
while len(s) < k:
	s += str(id)
	id += 1
print(s[k - 1])


c = [*range(1, int(input()) + 1)]
b = ''
d = c[-1]
while c and len(b) < c[-1]:
	b = b + str(c.pop(0))
print(int(b[d - 1]))


import sys
import math
get_string = lambda : sys.stdin.readline().strip()
get_int_list = lambda : list(map(int, sys.stdin.readline().strip().split()))
get_int = lambda : int(sys.stdin.readline())
pt = lambda x: sys.stdout.write(str(x) + '\n')
n = get_int()
end = 0
digit = 0
while True:
	digit += 1
	a = 10 ** (digit - 1)
	b = int('9' * digit)
	start = end + 1
	end = end + (b - a + 1) * digit
	if n <= end:
		break
rem = (n - start + 1) % digit
seq = (n - start + 1) // digit
if rem != 0:
	x = 1
else:
	x = 0
term = str(a + (seq + x - 1))
print(term[rem - 1])


l = []
n = []
sum = 0
multiply = 9
for i in range(1, 12):
	s = '9' * i
	n.append(int(s))
	sum += i * multiply
	multiply *= 10
	l.append(sum)
k = int(input())
if k < 9:
	print(k)
else:
	t = 0
	for i in range(len(l)):
		if k < l[i]:
			t = i
			break
	temp = k - l[t - 1]
	offset = temp % (t + 1)
	value = temp // (t + 1)
	number = n[t - 1] + value
	if offset == 0:
		print(number % 10)
	else:
		number += 1
		offset -= 1
		print(str(number)[offset])


mystring = ''
for num in range(1, 10000):
	mystring = mystring + str(num)
k = int(input())
print(mystring[k - 1])


i = 1
seq = ''
for i in range(10000):
	seq += str(i)
x = int(input())
print(seq[x])


paramaterK = int(input())
(count, digitString) = (0, '')
while count <= paramaterK:
	digitString += str(count)
	count = count + 1
print(digitString[paramaterK])


a = int(input())
i = 1
amount = a
while amount > i * (10 ** i - 10 ** (i - 1)):
	amount = amount - i * (10 ** i - 10 ** (i - 1))
	i = i + 1
x = amount // i
y = amount % i
if y == 0:
	if i == 1:
		print(x % 10)
	else:
		print((10 ** (i - 1) + x - 1) % 10)
elif i == 1:
	print(x % 10)
else:
	print((10 ** (i - 1) + x) // 10 ** (i - y) % 10)


import sys
import math
import collections
input = sys.stdin.readline
l = [str(i) for i in range(1, 100001)]
k = int(input())
i = 0
j = 0
while i < k:
	if i + len(l[j]) < k:
		i += len(l[j])
		j += 1
	else:
		for z in range(len(l[j])):
			if i + z + 1 == k:
				print(l[j][z])
				i = k
				break


ll = lambda : list(map(int, input().split()))
testcases = 1
for testcase in range(testcases):
	[k] = ll()
	s = ''
	for i in range(1, 5000):
		s += str(i)
	print(s[k - 1])


n = int(input())
a = ''
i = 0
while len(a) < n:
	i += 1
	a += str(i)
print(a[n - 1])


s = ''
for i in range(1, 100000000):
	s += str(i)
	if len(s) >= 11000:
		break
print(s[int(input()) - 1])


st = ''
for i in range(1, pow(10, 4) + 1):
	st = st + str(i)
k = int(input())
print(st[k - 1])


k = int(input())
int_list = [*range(1, k + 1)]
for num in range(k):
	int_list[num] = str(int_list[num])
final_list = ''.join(int_list)
print(final_list[k - 1])


def f(x):
	ret = 0
	while x > 0:
		ret += 1
		x = x // 10
	return ret
n = int(input())
id = 0
for i in range(1, 10000):
	if n - f(i) > 0:
		n -= f(i)
	elif n - f(i) == 0:
		n -= f(i)
		id = i
		break
	else:
		id = i
		break
s = str(id)
print(s[n - 1])


k = int(input())
l = [str(i) for i in range(1, k + 1)]
s = ''.join(l)
print(s[k - 1])


k = int(input(''))
sol = ''
cnt = 0
for i in range(1, 13):
	inc = 9 * 10 ** (i - 1) * i
	if cnt + inc >= k:
		break
	else:
		cnt += inc
lft = k - cnt
dig = lft / i
if dig != int(dig):
	dig = int(dig + 1)
else:
	dig = int(dig)
num = 10 ** (i - 1) + dig - 1
left = k - (cnt + dig * i)
sol = str(num)
print(sol[left - 1])


k = input()
k = int(k)
n = 1
while k - n * 9 * 10 ** (n - 1) > 0:
	k = k - n * 9 * 10 ** (n - 1)
	n = n + 1
n = n - 1
if n == 0:
	print(k)
else:
	nth_num = (k - 1) // (n + 1) + 1
	num = 10 ** n + nth_num - 1
	pos = (k - 1) % (n + 1)
	print(int(str(num)[pos]))


t = int(input())
s = ''
for x in range(1, 10001):
	s = s + str(x)
print(s[t - 1])


S = ''
index = 1
while len(S) < 10000:
	S = S + str(index)
	index += 1
print(S[int(input()) - 1])


import os
import sys
from io import BytesIO, IOBase
BUFSIZE = 8192

class FastIO(IOBase):
	newlines = 0

	def __init__(self, file):
		self._fd = file.fileno()
		self.buffer = BytesIO()
		self.writable = 'x' in file.mode or 'r' not in file.mode
		self.write = self.buffer.write if self.writable else None

	def read(self):
		while True:
			b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
			if not b:
				break
			ptr = self.buffer.tell()
			(self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr))
		self.newlines = 0
		return self.buffer.read()

	def readline(self):
		while self.newlines == 0:
			b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
			self.newlines = b.count(b'\n') + (not b)
			ptr = self.buffer.tell()
			(self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr))
		self.newlines -= 1
		return self.buffer.readline()

	def flush(self):
		if self.writable:
			os.write(self._fd, self.buffer.getvalue())
			(self.buffer.truncate(0), self.buffer.seek(0))

class IOWrapper(IOBase):

	def __init__(self, file):
		self.buffer = FastIO(file)
		self.flush = self.buffer.flush
		self.writable = self.buffer.writable
		self.write = lambda s: self.buffer.write(s.encode('ascii'))
		self.read = lambda : self.buffer.read().decode('ascii')
		self.readline = lambda : self.buffer.readline().decode('ascii')
(sys.stdin, sys.stdout) = (IOWrapper(sys.stdin), IOWrapper(sys.stdout))
input = lambda : sys.stdin.readline().rstrip('\r\n')
from bisect import bisect_left as bsl

def main():
	cur = 9
	count = 1
	tot = 0
	num = []
	cc = []
	for s in range(11):
		num.append(cur * count)
		tot += cur
		cc.append(tot)
		cur *= 10
		count += 1
	ans = [num[0]]
	for s in range(1, 11):
		ans.append(ans[-1] + num[s])
	k = int(input())
	ind = min(bsl(ans, k), 10)
	left = k
	if ind > 0:
		left -= ans[ind - 1]
	nums = left // (ind + 1)
	rem = left % (ind + 1)
	if left % (ind + 1) != 0:
		nums += 1
	if ind > 0:
		nums += cc[ind - 1]
	answer = [int(k) for k in str(nums)]
	print(answer[rem - 1])
main()


k = int(input())
if k <= 9:
	print(k)
else:
	s = 9
	n = 1
	while s < k:
		n += 1
		prev_s = s
		s += (10 ** n - 10 ** (n - 1)) * n
	digit_pos = k - (prev_s + 1)
	number = 10 ** (n - 1) + digit_pos // n
	if digit_pos / n != digit_pos // n:
		digit_pos = digit_pos - digit_pos // n * n
	else:
		digit_pos = 0
	print(str(number)[digit_pos])


from math import *

def digitcount(n):
	d = 0
	while True:
		if pow(10, d) <= n < pow(10, d + 1):
			return d + 1
		else:
			d = d + 1

def nth_digit(n):
	digitsum = 0
	i = 1
	while True:
		digitsum += len(str(i))
		if digitsum >= n:
			return int(str(i)[-1 - digitsum + n])
		else:
			i += 1
n1 = input()
n = int(n1)
print(nth_digit(n))


k = int(input())
a = []
for i in range(5000):
	for j in range(len(str(i))):
		a.append(str(i)[j])
a = list(a)
print(a[k])


(k, s) = (int(input()), str())
for i in range(1, k + 1):
	s = s + str(i)
for i in range(0, len(s)):
	if i + 1 == k:
		print(s[i])


from math import ceil
n = int(input())
if n <= 9:
	print(n)
elif n <= 189:
	v = ceil((n - 9) / 2) + 9
	print(str(v)[(n - 10) % 2])
elif n <= 2889:
	v = ceil((n - 189) / 3) + 99
	print(str(v)[(n - 190) % 3])
else:
	v = ceil((n - 2889) / 4) + 999
	print(str(v)[(n - 2890) % 4])


n = int(input())
x = 1
while n != 0:
	for i in range(len(str(x))):
		if n != 0:
			s = str(x)[i]
			n -= 1
	x += 1
print(s)


st = '0'
n = int(input(''))
i = 0
j = 1
while i < n:
	st += str(j)
	i += 1
	j += 1
print(st[n])


k = int(input())
lis = ''.join([str(i) for i in range(1, k + 1)])
print(lis[k - 1])


n = int(input())
l = [i for i in range(1, n + 1)]
s = ''.join((str(x) for x in l))
print(s[n - 1])


from __future__ import division, print_function
import os, sys
from io import BytesIO, IOBase
if sys.version_info[0] < 3:
	from __builtin__ import xrange as range
	from future_builtins import ascii, filter, hex, map, oct, zip

def ii():
	return int(input())

def si():
	return input()

def mi():
	return map(int, input().strip().split(' '))

def msi():
	return map(str, input().strip().split(' '))

def li():
	return list(mi())

def dmain():
	sys.setrecursionlimit(1000000)
	threading.stack_size(1024000)
	thread = threading.Thread(target=main)
	thread.start()
import sys
input = sys.stdin.readline
scanner = lambda : int(input())
string = lambda : input().rstrip()
get_list = lambda : list(read())
read = lambda : map(int, input().split())
get_float = lambda : map(float, input().split())

def ceil(x):
	if x != int(x):
		x = int(x) + 1
	return x

def factorial(x, m):
	val = 1
	while x > 0:
		val = val * x % m
		x -= 1
	return val

def fact(x):
	val = 1
	while x > 0:
		val *= x
		x -= 1
	return val

def swaparr(arr, a, b):
	temp = arr[a]
	arr[a] = arr[b]
	arr[b] = temp

def gcd(a, b):
	if b == 0:
		return a
	return gcd(b, a % b)

def lcm(a, b):
	return a * b // math.gcd(a, b)

def is_integer(n):
	return math.ceil(n) == math.floor(n)

def nCr(n, k):
	if k > n:
		return 0
	if k > n - k:
		k = n - k
	res = 1
	for i in range(k):
		res = res * (n - i)
		res = res / (i + 1)
	return int(res) % MOD

def comb(n, x):
	(a, b) = (1, 1)
	for i in range(1, x + 1):
		a *= n + 1 - i
		b *= i
	return a // b % MOD

def primefs(n):
	primes = {}
	while n % 2 == 0 and n > 0:
		primes[2] = primes.get(2, 0) + 1
		n = n // 2
	for i in range(3, int(n ** 0.5) + 2, 2):
		while n % i == 0 and n > 0:
			primes[i] = primes.get(i, 0) + 1
			n = n // i
	if n > 2:
		primes[n] = primes.get(n, 0) + 1
	return primes

def power(x, y, p):
	if y == 0:
		return 1
	res = 1
	x = x % p
	if x == 0:
		return 0
	while y > 0:
		if y & 1 == 1:
			res = res * x % p
		y = y >> 1
		x = x * x % p
	return res

def swap(a, b):
	temp = a
	a = b
	b = temp
	return (a, b)

def find(x, link):
	p = x
	while p != link[p]:
		p = link[p]
	while x != p:
		nex = link[x]
		link[x] = p
		x = nex
	return p

def union(x, y, link, size):
	x = find(x, link)
	y = find(y, link)
	if size[x] < size[y]:
		(x, y) = swap(x, y)
	if x != y:
		size[x] += size[y]
		link[y] = x

def sieve(n):
	prime = [True for i in range(n + 1)]
	(prime[0], prime[1]) = (False, False)
	p = 2
	while p * p <= n:
		if prime[p] == True:
			for i in range(p * p, n + 1, p):
				prime[i] = False
		p += 1
	return prime

def phi(n):
	result = n
	p = 2
	while p * p <= n:
		if n % p == 0:
			while n % p == 0:
				n = n // p
			result = result * (1.0 - 1.0 / float(p))
		p = p + 1
	if n > 1:
		result = result * (1.0 - 1.0 / float(n))
	return int(result)

def is_prime(n):
	if n == 0:
		return False
	if n == 1:
		return True
	for i in range(2, int(n ** (1 / 2)) + 1):
		if not n % i:
			return False
	return True

def next_prime(n, primes):
	while primes[n] != True:
		n += 1
	return n
MAXN = int(100000.0 + 5)

def spf_sieve():
	spf[1] = 1
	for i in range(2, MAXN):
		spf[i] = i
	for i in range(4, MAXN, 2):
		spf[i] = 2
	for i in range(3, ceil(MAXN ** 0.5), 2):
		if spf[i] == i:
			for j in range(i * i, MAXN, i):
				if spf[j] == j:
					spf[j] = i
spf = [0 for i in range(MAXN)]

def factoriazation(x):
	res = []
	for i in range(2, int(x ** 0.5) + 1):
		while x % i == 0:
			res.append(i)
			x //= i
	if x != 1:
		res.append(x)
	return res

def factors(n):
	res = []
	for i in range(1, int(n ** 0.5) + 1):
		if n % i == 0:
			res.append(i)
			res.append(n // i)
	return list(set(res))

def int_array():
	return list(map(int, input().strip().split()))

def float_array():
	return list(map(float, input().strip().split()))

def str_array():
	return input().strip().split()

def binary_search(low, high, w, h, n):
	while low < high:
		mid = low + (high - low) // 2
		if check(mid, w, h, n):
			low = mid + 1
		else:
			high = mid
	return low

def check(moves, n):
	val = (moves + 1) // 2
	rem = moves - val
	sol = (val + 1) * (rem + 1)
	return sol < n

def sortSecond(val):
	return val[1]
MOD = int(1000000000.0) + 7
CMOD = 998244353
INF = float('inf')
NINF = -float('inf')
small = 'abcdefghijklmnopqrstuvwxyz'
large = small.upper()
from itertools import permutations
import math
import bisect as bis
import random
import sys
import collections as collect
import functools as fnt
from decimal import Decimal

def solve():
	k = scanner()
	s = ''
	for i in range(1, 10001):
		s = s + str(i)
	print(s[k - 1])
BUFSIZE = 8192

class FastIO(IOBase):
	newlines = 0

	def __init__(self, file):
		self._fd = file.fileno()
		self.buffer = BytesIO()
		self.writable = 'x' in file.mode or 'r' not in file.mode
		self.write = self.buffer.write if self.writable else None

	def read(self):
		while True:
			b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
			if not b:
				break
			ptr = self.buffer.tell()
			(self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr))
		self.newlines = 0
		return self.buffer.read()

	def readline(self):
		while self.newlines == 0:
			b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
			self.newlines = b.count(b'\n') + (not b)
			ptr = self.buffer.tell()
			(self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr))
		self.newlines -= 1
		return self.buffer.readline()

	def flush(self):
		if self.writable:
			os.write(self._fd, self.buffer.getvalue())
			(self.buffer.truncate(0), self.buffer.seek(0))

class IOWrapper(IOBase):

	def __init__(self, file):
		self.buffer = FastIO(file)
		self.flush = self.buffer.flush
		self.writable = self.buffer.writable
		self.write = lambda s: self.buffer.write(s.encode('ascii'))
		self.read = lambda : self.buffer.read().decode('ascii')
		self.readline = lambda : self.buffer.readline().decode('ascii')

def print(*args, **kwargs):
	(sep, file) = (kwargs.pop('sep', ' '), kwargs.pop('file', sys.stdout))
	at_start = True
	for x in args:
		if not at_start:
			file.write(sep)
		file.write(str(x))
		at_start = False
	file.write(kwargs.pop('end', '\n'))
	if kwargs.pop('flush', False):
		file.flush()
if sys.version_info[0] < 3:
	(sys.stdin, sys.stdout) = (FastIO(sys.stdin), FastIO(sys.stdout))
else:
	(sys.stdin, sys.stdout) = (IOWrapper(sys.stdin), IOWrapper(sys.stdout))
input = lambda : sys.stdin.readline().rstrip('\r\n')
t = 1
for i in range(t):
	solve()


k = int(input(''))
sol = ''
cnt = 0
for i in range(1, 10000):
	sol += str(i)
	cnt += len(str(i))
	if cnt >= k:
		break
print(int(sol[k - 1]))


k = int(input())
number = 1
main_number = ''
while len(main_number) + len(str(number)) < k:
	main_number += str(number)
	number += 1
print(str(number)[k - len(main_number) - 1])


number = int(input())
count = 0
while number - len(str(count + 1)) >= 0:
	number -= len(str(count + 1))
	count += 1
if number == 0:
	count = str(count)
	print(count[-1])
else:
	count += 1
	count = str(count)
	print(count[number - 1])


a = int(input())
st = ''
for i in range(1, a + 2):
	st += str(i)
	if len(st) > a:
		break
print(st[a - 1])


num = int(input())
string = ''
result = 0
if num <= 9:
	print(str(num))
else:
	for i in range(1, num + 1):
		string += str(i)
	print(string[num - 1])


k = int(input())
prev = 0
nextt = 0
NumofDigits = 0
while True:
	prev = nextt
	nextt = nextt + 9 * 10 ** (NumofDigits - 1) * NumofDigits
	if k >= prev and k <= nextt:
		break
	NumofDigits = NumofDigits + 1
if NumofDigits == 1:
	print(k)
else:
	result = 10 ** (NumofDigits - 1) + int((k - (prev + 1)) / NumofDigits)
	i = 0
	while True:
		if (k - int(prev + 1)) % NumofDigits == i:
			break
		i = i + 1
	result = str(result)
	print(result[i])


s = ''
for i in range(1, 10 ** 4 + 1):
	s += str(i)
print(s[int(input()) - 1])


k = int(input())
s = ''
st = 1
while len(s) <= k + 2:
	s += str(st)
	st += 1
print(s[k - 1])


list1 = []
for i in range(10001):
	list1.append(str(i))
str1 = ''.join(list1)
print(str1[int(input())])


k = int(input())
if k < 10:
	print(k)
	quit()
c = 0
n = k
a = k
while n > 0:
	c += 1
	sub = 10 ** c - 10 ** (c - 1)
	a -= sub * c
	n = a / (c + 1) + (10 ** c - 1)
	if n + 1 <= 10 ** (c + 1):
		if int(n) == n:
			print(int(n % 10))
			exit()
		else:
			print(str(int(n) + 1)[round((n - int(n)) * (c + 1)) - 1])
			exit()


k = int(input())
print(''.join(map(str, range(1, k + 1)))[k - 1])


def lint(n):
	h = int(n)
	i = 0
	while h > 0:
		h = int(h / 10)
		i = i + 1
	len = i
	return len
k = int(input())
list = [1]
n = 1
y = 1
for y in range(1, k):
	n = n + 1
	p = lint(n)
	for i in range(p, 0, -1):
		e = 10 ** (i - 1)
		x = int(n / e)
		z = x % 10
		list.append(z)
	y = y + p
print(list[k - 1])


k = int(input())
String = ''
c = 0
for i in range(0, k):
	c += 1
	String += str(c)
print(String[k - 1])


import sys
n = int(input())
ind = 0
dig = 0
for i in range(1, 12):
	dig += i * 10 ** (i - 1) * 9
	if dig > n:
		ind = i - 1
		rt = dig - i * 10 ** (i - 1) * 9
		break
n -= rt
no = 10 ** ind
if n == 0:
	print(9)
	sys.exit()
u = n
n -= n // (ind + 1) * (ind + 1)
no += max(0, u // (ind + 1) - 1)
if n == 0:
	print(str(no)[-1])
else:
	no += 1
while n > 0:
	if n <= ind + 1:
		e = str(no)
		print(e[n - 1])
	n -= ind + 1
	no += 1


s = ''
for x in range(1, 10000):
	s += str(x)
k = int(input())
print(s[k - 1])


k = int(input())
for i in range(1, 26700):
	s = str(i)
	if k > len(s):
		k -= len(s)
	elif k == len(s):
		print(s[-1])
		break
	else:
		print(s[k - 1])
		break


from math import log
k = int(input())
r = k
l = 1
t = log(10)
while 1:
	m = (l + r) // 2
	x = int(log(m) / t)
	d = (1 - 10 ** (x + 1)) // 9 + (m + 1) * (x + 1)
	if 0 <= k - d <= 13:
		break
	elif d > k:
		r = m - 1
	else:
		l = m + 1
if m == 1000:
	d += 1
if d == k:
	print(str(m)[-1])
	exit()
st = ''
v = k - d
m += 1
for i in range(13):
	st += str(m)
	m += 1
print(st[v - 1])


k = int(input())
st = ''
for i in range(1, 5000):
	st = st + str(i)
print(st[k - 1])


n = int(input())
print(''.join(map(str, range(n + 1)))[n])


p = list(map(str, list(range(1, 10000))))
q = ''.join(p)
k = int(input())
print(q[k - 1])


n = int(input())
ans = ''
for i in range(n):
	ans += str(i + 1)
print(ans[n - 1])


from sys import stdin
import math
from collections import defaultdict
I = stdin.readline
s = []
for i in range(1, 10000):
	s.append(str(i))
s = ''.join(s)
n = int(I())
print(s[n - 1])


digit = int(input())
if int(digit) <= 9:
	print(digit)
	exit()
start_range = 1
end_range = 9
power = 1
digit_count = 2
while not (start_range <= digit and digit <= end_range):
	start_range = end_range + 1
	end_range = 9 * 10 ** power * digit_count + start_range - 1
	power += 1
	digit_count += 1
offset_number = (digit - start_range) // (digit_count - 1)
number = str(10 ** (power - 1) + offset_number)
offset_digit = (digit - start_range) % (digit_count - 1)
print(f'{number[offset_digit]}')


k = int(input())
res = ''
for i in range(1, 3000):
	res += str(i)
	if len(res) >= k:
		print(res[k - 1])
		exit(0)


n = int(input())
seq = ''.join([str(i) for i in range(0, 10001)])
print(seq[n])


s = 0
t = 0
c = 0
k = int(input())
while s < k:
	te = s
	temp = t
	t = t + 9 * pow(10, c)
	s = s + 9 * pow(10, c) * (c + 1)
	c = c + 1
a = (k - te) // c
re = (k - te) % c
if re == 0:
	a = a + temp
	a = str(a)
	print(a[-1])
else:
	a = a + temp + 1
	a = str(a)
	print(a[re - 1])


s = ''.join(list(map(str, [i for i in range(1, 10001)])))
k = int(input())
print(s[k - 1])


n = int(input())

def exp_(i):
	return (9 * pow(10, i) * i - 10 ** i + 1) // 9
i = 0
while True:
	v = exp_(i)
	if v >= n:
		break
	i = i + 1
if n == v:
	print('9')
else:
	n = n - exp_(i - 1)
	num = 10 ** (i - 1) - 1
	num = num + n // i
	r = n % i
	if r > 0:
		num = num + 1
		f = str(num)
		print(f[r - 1])
	else:
		t = str(num)
		print(t[-1])


mod = 1000000007
ii = lambda : int(input())
si = lambda : input()
dgl = lambda : list(map(int, input()))
f = lambda : map(int, input().split())
il = lambda : list(map(int, input().split()))
ls = lambda : list(input())
n = ii()
s = ''
for i in range(1, 5001):
	s += str(i)
print(s[n - 1])


import math
k = int(input())
s = 0
i = 0
while s < k:
	s = s + 9 * 10 ** i * (i + 1)
	i = i + 1
if k < 10:
	print(k)
else:
	k = k - s + 9 * 10 ** (i - 1) * i
	a = int(math.floor((k - 1) / i))
	a = a + 10 ** (i - 1)
	l = list(str(a))
	r = int((k - 1) % i)
	a = int(l[r])
	print(a)


T = (0, 9, 189, 2889, 38889, 488889, 5888889, 68888889, 788888889, 8888888889, 98888888889, 1088888888889)
k = int(input())
a = 0
for i in T:
	if i - k > 0:
		a = T.index(i)
		break
temp = T[a] - k
x = temp % a
res = 10 ** a - 1 - int(temp / a)
ans = int(res % 10 ** (x + 1) / 10 ** x)
print(ans)


n = int(input())
s = ''
counter = 1
while len(s) < n:
	s = s + str(counter)
	counter += 1
print(s[n - 1])


x = ''
cnt = 1
while True:
	x += str(cnt)
	cnt += 1
	if len(x) > 20000:
		break
n = int(input())
print(x[n - 1])


import sys
import math
import bisect

def main():
	val = 0
	A = []
	for i in range(1, 10000 + 1):
		s = str(i)
		A.append(s)
		val += len(s)
		if val >= 10000:
			break
	s = ''.join(list((str(a) for a in A)))
	n = int(input())
	print(s[n - 1])
main()


k = int(input())
for i in range(20):
	if k > 10 ** i * 9 * (i + 1):
		k -= 10 ** i * 9 * (i + 1)
	else:
		(a, b) = ((k - 1) // (i + 1) + 10 ** i, (k - 1) % (i + 1))
		print(str(a)[b])
		break


x = int(input())
c = ''
for i in range(1, 5000):
	c += str(i)
print(c[x - 1])


N = int(input())
a = ''
for i in range(1, N + 1):
	a += str(i)
print(a[N - 1])


k = int(input())
ch = 0
i = 0
r = 1
while k > r - 1:
	r += 9 * (i + 1) * 10 ** i
	i += 1
r -= 9 * i * 10 ** (i - 1)
print(str((k - r) // i + 10 ** (i - 1))[(k - r) % i])


def main_function():
	counter = int(input())
	my_counter = 0
	i = 0
	while True:
		i += 1
		my_counter += len(str(i))
		if my_counter >= counter:
			dif = my_counter - counter
			print(str(i)[-1 - dif])
			break
main_function()


n = int(input())
counter = 0
cur_number = 0
cur_array = list()
while counter < n:
	cur_number += 1
	cur = cur_number
	result = 0
	cur_array = list()
	while cur > 0:
		cur_array.append(cur % 10)
		cur //= 10
	cur_array.reverse()
	for i in cur_array:
		result = i
		counter += 1
		if counter == n:
			break
print(result)


L = [(i + 1) * 9 * 10 ** i for i in range(12)]
number = int(input())
exponent = 0
while number >= 0:
	number -= L[exponent]
	exponent += 1
exponent -= 1
number %= L[exponent]
start = 10 ** exponent
numDigits = exponent + 1
final = start + (number // numDigits - 1)
remainder = number % numDigits
if remainder == 0:
	final = str(final)
	print(final[-1])
else:
	final = str(final + 1)
	print(final[remainder - 1])


string = ''
search = int(input())
i = 1
while len(string) <= search:
	string += str(i)
	i = i + 1
print(string[search - 1:search])


n = int(input())
i = 1
stri = ''
while i <= n:
	stri += str(i)
	i += 1
print(stri[n - 1])


k = int(input())
if k <= 9:
	print(k)
else:
	length = len(str(k))
	s = ''
	num = 0
	for i in range(length - 1):
		num += 9 * 10 ** i * (i + 1)
		temp = num + 9 * 10 ** (i + 1) * (i + 2)
		if temp > k:
			length = i + 2
			break
	for i in range(length - 1):
		s = s + '1'
	previous_value = 9 * int(s)
	try_value = k - num
	if try_value % length == 0:
		div_value = try_value // length
		temp_string = str(previous_value + div_value)
		print(temp_string[len(temp_string) - 1])
	else:
		div_value = try_value // length + 1
		temp_string = str(previous_value + div_value)
		differ = div_value * length - try_value
		print(temp_string[len(temp_string) - differ - 1])


import bisect
xyz = [9, 90, 900, 9000, 90000, 900000, 9000000, 90000000, 900000000, 9000000000, 900000000000]
xzy = [10, 190, 2890, 38890, 488890, 5888890, 68888890, 788888890, 8888888890, 98888888890, 1088888888890, 11888888888890]
count = 2
k = int(input())
digits = bisect.bisect_left(xzy, k)
if k == 10:
	print(1)
elif k > 10:
	apu = k - xzy[digits - 1]
	modulo = apu % (digits + 1)
	dlj = apu // (digits + 1)
	output = 10 ** digits + dlj
	list1 = [i for i in str(output)]
	print(list1[modulo])
else:
	print(k)


import math
n = int(input())
a = [9]
for i in range(2, 20):
	a.append(10 ** i - 10 ** (i - 1))
b = [0]
for i in range(1, 20):
	b.append(b[-1] + i * a[i - 1])
for i in range(20):
	if n <= b[i]:
		break
p = b[i - 1]
k = n - p
ans = 10 ** (i - 1) - 1 + math.ceil(k / i)
if k % i == 0:
	print(('0' + str(ans))[i])
else:
	print(('0' + str(ans))[k % i])


from math import ceil
n = int(input())
if n <= 9:
	print(n)
else:
	d = 2
	ov = 9
	while n > d * 9 * 10 ** (d - 1) + ov:
		ov = d * 9 * 10 ** (d - 1) + ov
		d += 1
	v = ceil((n - ov) / d) + int('9' * (d - 1))
	print(str(v)[(n - ov - 1) % d])


def decimal2Str(a: int):
	x = list()
	while a > 0:
		x = [str(a % 10)] + x
		a = int(a / 10)
	return x
k = int(input())
(index, adddigit) = (1, 1)
ans = []
tmp = k
while tmp >= adddigit:
	ans = ans + decimal2Str(index)
	index += 1
	tmp -= adddigit
	if index >= 10 ** adddigit:
		adddigit += 1
ln = len(ans) + tmp
if tmp > 0:
	ans = ans + decimal2Str(index)
print(ans[ln - 1])


k = int(input())
k -= 1
(pow_10, length) = (1, 1)
while 9 * pow_10 * length < k:
	k -= 9 * pow_10 * length
	pow_10 *= 10
	length += 1
div = k / length
rem = k % length
num = pow_10 + div
print(str(num)[rem])


k = int(input())
l = []
for i in range(10000):
	l.append(str(i))
l = ''.join(l)
print(l[k])


pre_cal_sum_dec = {}

def sum_dec(n):
	global pre_cal_sum_dec
	try:
		return pre_cal_sum_dec[n]
	except:
		sumer = 0
		for i in range(1, n):
			sumer += 10 ** i
		pre_cal_sum_dec[n] = sumer
		return sumer

def find_head(digits):
	if digits < 1:
		return 0
	elif digits == 1:
		return 1
	else:
		return (digits - 1) * 10 ** (digits - 1) - sum_dec(digits - 1)

def cutter(start, end):
	listo = [0 for _ in range(10)]
	part = (end - start) // 9
	listo[0] = start
	for each in range(1, 10):
		start += part
		listo[each] = start
	return listo

def finder(number):
	(x, i) = (0, 0)
	if number == 1:
		return 1
	while x < number:
		bef = x
		x = find_head(i)
		i += 1
	if x == number:
		return 1
	e = i - 2
	number = number - bef
	interval = e * 10 ** (e - 1)
	col = number % e
	if col == 0:
		return (number // interval + 1) % 10
	return number // (e * 10 ** (e - 1 - col)) % 10
print(finder(int(input())))


n = int(input())
s = ''
for x in range(10000):
	s += str(x)
print(s[n])


s = '1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798991001011021031041051061071081091101111121131141151161171181191201211221231241251261271281291301311321331341351361371381391401411421431441451461471481491501511521531541551561571581591601611621631641651661671681691701711721731741751761771781791801811821831841851861871881891901911921931941951961971981992002012022032042052062072082092102112122132142152162172182192202212222232242252262272282292302312322332342352362372382392402412422432442452462472482492502512522532542552562572582592602612622632642652662672682692702712722732742752762772782792802812822832842852862872882892902912922932942952962972982993003013023033043053063073083093103113123133143153163173183193203213223233243253263273283293303313323333343353363373383393403413423433443453463473483493503513523533543553563573583593603613623633643653663673683693703713723733743753763773783793803813823833843853863873883893903913923933943953963973983994004014024034044054064074084094104114124134144154164174184194204214224234244254264274284294304314324334344354364374384394404414424434444454464474484494504514524534544554564574584594604614624634644654664674684694704714724734744754764774784794804814824834844854864874884894904914924934944954964974984995005015025035045055065075085095105115125135145155165175185195205215225235245255265275285295305315325335345355365375385395405415425435445455465475485495505515525535545555565575585595605615625635645655665675685695705715725735745755765775785795805815825835845855865875885895905915925935945955965975985996006016026036046056066076086096106116126136146156166176186196206216226236246256266276286296306316326336346356366376386396406416426436446456466476486496506516526536546556566576586596606616626636646656666676686696706716726736746756766776786796806816826836846856866876886896906916926936946956966976986997007017027037047057067077087097107117127137147157167177187197207217227237247257267277287297307317327337347357367377387397407417427437447457467477487497507517527537547557567577587597607617627637647657667677687697707717727737747757767777787797807817827837847857867877887897907917927937947957967977987998008018028038048058068078088098108118128138148158168178188198208218228238248258268278288298308318328338348358368378388398408418428438448458468478488498508518528538548558568578588598608618628638648658668678688698708718728738748758768778788798808818828838848858868878888898908918928938948958968978988999009019029039049059069079089099109119129139149159169179189199209219229239249259269279289299309319329339349359369379389399409419429439449459469479489499509519529539549559569579589599609619629639649659669679689699709719729739749759769779789799809819829839849859869879889899909919929939949959969979989991000100110021003100410051006100710081009101010111012101310141015101610171018101910201021102210231024102510261027102810291030103110321033103410351036103710381039104010411042104310441045104610471048104910501051105210531054105510561057105810591060106110621063106410651066106710681069107010711072107310741075107610771078107910801081108210831084108510861087108810891090109110921093109410951096109710981099110011011102110311041105110611071108110911101111111211131114111511161117111811191120112111221123112411251126112711281129113011311132113311341135113611371138113911401141114211431144114511461147114811491150115111521153115411551156115711581159116011611162116311641165116611671168116911701171117211731174117511761177117811791180118111821183118411851186118711881189119011911192119311941195119611971198119912001201120212031204120512061207120812091210121112121213121412151216121712181219122012211222122312241225122612271228122912301231123212331234123512361237123812391240124112421243124412451246124712481249125012511252125312541255125612571258125912601261126212631264126512661267126812691270127112721273127412751276127712781279128012811282128312841285128612871288128912901291129212931294129512961297129812991300130113021303130413051306130713081309131013111312131313141315131613171318131913201321132213231324132513261327132813291330133113321333133413351336133713381339134013411342134313441345134613471348134913501351135213531354135513561357135813591360136113621363136413651366136713681369137013711372137313741375137613771378137913801381138213831384138513861387138813891390139113921393139413951396139713981399140014011402140314041405140614071408140914101411141214131414141514161417141814191420142114221423142414251426142714281429143014311432143314341435143614371438143914401441144214431444144514461447144814491450145114521453145414551456145714581459146014611462146314641465146614671468146914701471147214731474147514761477147814791480148114821483148414851486148714881489149014911492149314941495149614971498149915001501150215031504150515061507150815091510151115121513151415151516151715181519152015211522152315241525152615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print(s[int(input()) - 1])


index = int(input())
s = ''
for i in range(3001):
	s = s + str(i)
print(s[index])


n = int(input())
s = 0
pred = 0
for i in range(1, 20):
	m = 9 * pow(10, i - 1) * i
	s += m
	if n <= s:
		nd = pow(10, i - 1)
		sme = n - pred
		num = sme // i
		ost = sme % i
		if ost == 0:
			dig = nd + num - 1
		else:
			dig = nd + num
		d = i
		rez = []
		ddig = dig
		while d > 0:
			o = ddig % 10
			a = ddig // 10
			rez.append(o)
			d -= 1
			ddig = a
		break
	pred = s
print(str(rez[-ost]))


n = int(input())
if n <= 9:
	print(n)
elif n <= 189:
	n -= 9
	a = n / 2
	b = n % 2
	if b == 1:
		print(str(9 + a + 1)[0])
	else:
		print(str(9 + a)[1])
elif n <= 2889:
	n -= 189
	a = n / 3
	b = n % 3
	if b > 0:
		print(str(int(99 + a + 1))[b - 1])
	else:
		print(str(int(99 + a))[-1:])
elif n <= 38889:
	n -= 2889
	a = n / 4
	b = n % 4
	if b > 0:
		print(str(int(999 + a + 1))[b - 1])
	else:
		print(str(int(999 + a))[-1:])
else:
	n -= 38889
	a = n / 5
	b = n % 5
	if b > 0:
		print(str(int(9999 + a + 1))[b - 1])
	else:
		print(str(int(9999 + a))[-1:])


n = input()
if len(n) == 1:
	print(n)
	exit(0)
else:
	li = list(range(1, int(n) + 1))
	s = ''
	for i in li:
		s += str(i)
	print(s[int(n) - 1])


k = 10000
i = 1
s = ''
while i <= k:
	s = s + str(i)
	i = i + 1
n = int(input())
print(s[n - 1])


k = int(input())
ar = []
ith = 0
for i in range(1, k + 1):
	for j in str(i):
		ar.append(j)
		ith += 1
print(ar[k - 1])


from sys import stdin, stdout
import bisect
import math

def st():
	return list(stdin.readline().strip())

def inp():
	return int(stdin.readline())

def li():
	return list(map(int, stdin.readline().split()))

def mp():
	return map(int, stdin.readline().split())

def pr(n):
	stdout.write(str(n) + '\n')

def soe(limit):
	l = [1] * (limit + 1)
	prime = []
	for i in range(2, limit + 1):
		if l[i]:
			for j in range(i * i, limit + 1, i):
				l[j] = 0
	for i in range(2, limit + 1):
		if l[i]:
			prime.append(i)
	return prime

def segsoe(low, high):
	limit = int(high ** 0.5) + 1
	prime = soe(limit)
	n = high - low + 1
	l = [0] * (n + 1)
	for i in range(len(prime)):
		lowlimit = low // prime[i] * prime[i]
		if lowlimit < low:
			lowlimit += prime[i]
		if lowlimit == prime[i]:
			lowlimit += prime[i]
		for j in range(lowlimit, high + 1, prime[i]):
			l[j - low] = 1
	for i in range(low, high + 1):
		if not l[i - low]:
			if i != 1:
				print(i)

def gcd(a, b):
	while b:
		a = a % b
		(b, a) = (a, b)
	return a

def power(a, n):
	r = 1
	while n:
		if n & 1:
			r = r * a
		a *= a
		n = n >> 1
	return r

def solve():
	n = inp()
	s = ''
	for i in range(2800):
		s += str(i)
	print(s[n])
for _ in range(1):
	solve()


k = int(input())
i = 1
stri = ''
while len(stri) <= k:
	stri = stri + str(i)
	i = i + 1
print(stri[k - 1])


k = int(input())
a = ''
for i in range(1, 5005):
	a += str(i)
print(a[k - 1])


A = '1'
for n in range(2, 10 ** 4):
	A = A + str(n)
k = int(input())
print(A[k - 1])


n = int(input())
lis = ''
for i in range(1, n + 1):
	lis += str(i)
print(lis[n - 1])


k = int(input())
x = [0, 9]
i = 2
y = 90
while x[-1] < 10 ** 12:
	x.append(x[-1] + y * i)
	y *= 10
	i += 1
if k in x:
	print(9)
else:
	for t in range(len(x)):
		if k < x[t]:
			break
	e = k - x[t - 1]
	if t == 1:
		q = str(e)
	else:
		q = str(10 ** (t - 1) + e // t - 1)
	if e % t == 0:
		print(q[-1])
	else:
		q = str(int(q) + 1)
		print(q[e % t - 1])


def convert(list):
	s = [str(i) for i in list]
	res = int(''.join(s))
	return res

def split(word):
	return [char for char in word]
x = [i for i in range(2800)]
l = convert(x)
p = str(l)
main = split(p)
k = int(input())
print(main[k - 1])


import sys, math

def read_int():
	return int(sys.stdin.readline().strip())

def read_int_list():
	return list(map(int, sys.stdin.readline().strip().split()))

def read_string():
	return sys.stdin.readline().strip()

def read_string_list(delim=' '):
	return sys.stdin.readline().strip().split(delim)
k = read_int()
base_digit_number = 1
expo = 0
while k >= base_digit_number:
	base_digit_number += 9 * (expo + 1) * 10 ** expo
	expo += 1
base_digit_number -= 9 * expo * 10 ** (expo - 1)
ans_number = (k - base_digit_number) // expo + 10 ** (expo - 1)
ans_digit = str(ans_number)[(k - base_digit_number) % expo]
print(ans_digit)


n = int(input())
output = ''
for i in range(10001):
	output += str(i)
print(output[n])


def main():
	k = int(input())
	digit = 1
	low = 1
	high = 9
	totalDigit = 9
	lastTotalDigit = 0
	while totalDigit < k:
		low *= 10
		high = 10 * low - 1
		digit += 1
		lastTotalDigit = totalDigit
		totalDigit += (high + 1 - low) * digit
	k -= lastTotalDigit
	cur = str(low + (k - 1) // digit)
	print(cur[(k - 1) % digit])
main()


k = int(input())
string_1 = ''
i = 1
while len(string_1) < k:
	string_1 = string_1 + str(i)
	i = i + 1
print(string_1[k - 1])


n = int(input())
num = ''
for i in range(1, 100000):
	num += str(i)
print(num[n - 1])


prepro = [str(i) for i in range(1, 100000)]
prepro = ''.join(prepro)
output = [i for i in prepro]
n = int(input())
print(output[n - 1])


def get_kth_digit(i):
	if i < 10:
		return i
	batch = 9
	count = 9
	width = 1
	while i > 10 * batch * (width + 1) + count:
		batch *= 10
		width += 1
		count += batch * width
	k = i - count - 1
	num = 10 ** width + k // (width + 1)
	return str(num)[k % (width + 1)]

def main():
	i = int(input())
	print(get_kth_digit(i))
main()


a = ''
for i in range(5000):
	a += str(i)
k = int(input())
print(a[k])


k = int(input())
s = []
c = 0
i = 1
while c < k:
	ch = str(i)
	s.append(ch)
	c += len(ch)
	i += 1
print(''.join(s)[k - 1])


x = []
for i in range(1, 10001):
	x.append(str(i))
x = ''.join(x)
k = int(input())
print(x[k - 1])


import bisect
b = []
a = []
b.append(0)
for i in range(1, 15):
	b.append(9 * i * 10 ** (i - 1))
a.append(b[0])
for i in range(1, 15):
	a.append(a[i - 1] + b[i])
k = int(input())
th = bisect.bisect_left(a, k)
th -= 1
k = k - a[th]
start = 10 ** th
now = th + 1
rem = k % now
iss = k / now
end = start + k / now
temp = str(end - 1)
s = ''
s += temp[now - 1] + str(end) + str(end + 1)
print(s[0 + rem])


a = ''
for k in range(1, 10000):
	a = a + str(k)
	if len(a) >= 10000:
		break
s = int(input())
print(a[s - 1])


import math

def get_digit(x, pos):
	s = []
	while x > 0:
		s.append(x % 10)
		x //= 10
	return s[::-1][pos]

def find_digit(x):
	n = 0
	next_ = 9 * 10 ** n * (n + 1)
	while next_ <= x:
		x -= next_
		n += 1
		next_ = 9 * 10 ** n * (n + 1)
	if x == 0:
		return 9
	pos_ = 10 ** n + math.ceil(x / (n + 1)) - 1
	return get_digit(pos_, (x - 1) % (n + 1))
k = int(input())
print(find_digit(k))


a = int(input())
str = '1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798991001011021031041051061071081091101111121131141151161171181191201211221231241251261271281291301311321331341351361371381391401411421431441451461471481491501511521531541551561571581591601611621631641651661671681691701711721731741751761771781791801811821831841851861871881891901911921931941951961971981992002012022032042052062072082092102112122132142152162172182192202212222232242252262272282292302312322332342352362372382392402412422432442452462472482492502512522532542552562572582592602612622632642652662672682692702712722732742752762772782792802812822832842852862872882892902912922932942952962972982993003013023033043053063073083093103113123133143153163173183193203213223233243253263273283293303313323333343353363373383393403413423433443453463473483493503513523533543553563573583593603613623633643653663673683693703713723733743753763773783793803813823833843853863873883893903913923933943953963973983994004014024034044054064074084094104114124134144154164174184194204214224234244254264274284294304314324334344354364374384394404414424434444454464474484494504514524534544554564574584594604614624634644654664674684694704714724734744754764774784794804814824834844854864874884894904914924934944954964974984995005015025035045055065075085095105115125135145155165175185195205215225235245255265275285295305315325335345355365375385395405415425435445455465475485495505515525535545555565575585595605615625635645655665675685695705715725735745755765775785795805815825835845855865875885895905915925935945955965975985996006016026036046056066076086096106116126136146156166176186196206216226236246256266276286296306316326336346356366376386396406416426436446456466476486496506516526536546556566576586596606616626636646656666676686696706716726736746756766776786796806816826836846856866876886896906916926936946956966976986997007017027037047057067077087097107117127137147157167177187197207217227237247257267277287297307317327337347357367377387397407417427437447457467477487497507517527537547557567577587597607617627637647657667677687697707717727737747757767777787797807817827837847857867877887897907917927937947957967977987998008018028038048058068078088098108118128138148158168178188198208218228238248258268278288298308318328338348358368378388398408418428438448458468478488498508518528538548558568578588598608618628638648658668678688698708718728738748758768778788798808818828838848858868878888898908918928938948958968978988999009019029039049059069079089099109119129139149159169179189199209219229239249259269279289299309319329339349359369379389399409419429439449459469479489499509519529539549559569579589599609619629639649659669679689699709719729739749759769779789799809819829839849859869879889899909919929939949959969979989991000100110021003100410051006100710081009101010111012101310141015101610171018101910201021102210231024102510261027102810291030103110321033103410351036103710381039104010411042104310441045104610471048104910501051105210531054105510561057105810591060106110621063106410651066106710681069107010711072107310741075107610771078107910801081108210831084108510861087108810891090109110921093109410951096109710981099110011011102110311041105110611071108110911101111111211131114111511161117111811191120112111221123112411251126112711281129113011311132113311341135113611371138113911401141114211431144114511461147114811491150115111521153115411551156115711581159116011611162116311641165116611671168116911701171117211731174117511761177117811791180118111821183118411851186118711881189119011911192119311941195119611971198119912001201120212031204120512061207120812091210121112121213121412151216121712181219122012211222122312241225122612271228122912301231123212331234123512361237123812391240124112421243124412451246124712481249125012511252125312541255125612571258125912601261126212631264126512661267126812691270127112721273127412751276127712781279128012811282128312841285128612871288128912901291129212931294129512961297129812991300130113021303130413051306130713081309131013111312131313141315131613171318131913201321132213231324132513261327132813291330133113321333133413351336133713381339134013411342134313441345134613471348134913501351135213531354135513561357135813591360136113621363136413651366136713681369137013711372137313741375137613771378137913801381138213831384138513861387138813891390139113921393139413951396139713981399140014011402140314041405140614071408140914101411141214131414141514161417141814191420142114221423142414251426142714281429143014311432143314341435143614371438143914401441144214431444144514461447144814491450145114521453145414551456145714581459146014611462146314641465146614671468146914701471147214731474147514761477147814791480148114821483148414851486148714881489149014911492149314941495149614971498149915001501150215031504150515061507150815091510151115121513151415151516151715181519152015211522152315241525152615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77'
l = list(str)
print(l[a - 1])


k = int(input())
allnums = ''
for i in range(k):
	allnums = allnums + str(i + 1)
print(allnums[k - 1])


print('1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798991001011021031041051061071081091101111121131141151161171181191201211221231241251261271281291301311321331341351361371381391401411421431441451461471481491501511521531541551561571581591601611621631641651661671681691701711721731741751761771781791801811821831841851861871881891901911921931941951961971981992002012022032042052062072082092102112122132142152162172182192202212222232242252262272282292302312322332342352362372382392402412422432442452462472482492502512522532542552562572582592602612622632642652662672682692702712722732742752762772782792802812822832842852862872882892902912922932942952962972982993003013023033043053063073083093103113123133143153163173183193203213223233243253263273283293303313323333343353363373383393403413423433443453463473483493503513523533543553563573583593603613623633643653663673683693703713723733743753763773783793803813823833843853863873883893903913923933943953963973983994004014024034044054064074084094104114124134144154164174184194204214224234244254264274284294304314324334344354364374384394404414424434444454464474484494504514524534544554564574584594604614624634644654664674684694704714724734744754764774784794804814824834844854864874884894904914924934944954964974984995005015025035045055065075085095105115125135145155165175185195205215225235245255265275285295305315325335345355365375385395405415425435445455465475485495505515525535545555565575585595605615625635645655665675685695705715725735745755765775785795805815825835845855865875885895905915925935945955965975985996006016026036046056066076086096106116126136146156166176186196206216226236246256266276286296306316326336346356366376386396406416426436446456466476486496506516526536546556566576586596606616626636646656666676686696706716726736746756766776786796806816826836846856866876886896906916926936946956966976986997007017027037047057067077087097107117127137147157167177187197207217227237247257267277287297307317327337347357367377387397407417427437447457467477487497507517527537547557567577587597607617627637647657667677687697707717727737747757767777787797807817827837847857867877887897907917927937947957967977987998008018028038048058068078088098108118128138148158168178188198208218228238248258268278288298308318328338348358368378388398408418428438448458468478488498508518528538548558568578588598608618628638648658668678688698708718728738748758768778788798808818828838848858868878888898908918928938948958968978988999009019029039049059069079089099109119129139149159169179189199209219229239249259269279289299309319329339349359369379389399409419429439449459469479489499509519529539549559569579589599609619629639649659669679689699709719729739749759769779789799809819829839849859869879889899909919929939949959969979989991000100110021003100410051006100710081009101010111012101310141015101610171018101910201021102210231024102510261027102810291030103110321033103410351036103710381039104010411042104310441045104610471048104910501051105210531054105510561057105810591060106110621063106410651066106710681069107010711072107310741075107610771078107910801081108210831084108510861087108810891090109110921093109410951096109710981099110011011102110311041105110611071108110911101111111211131114111511161117111811191120112111221123112411251126112711281129113011311132113311341135113611371138113911401141114211431144114511461147114811491150115111521153115411551156115711581159116011611162116311641165116611671168116911701171117211731174117511761177117811791180118111821183118411851186118711881189119011911192119311941195119611971198119912001201120212031204120512061207120812091210121112121213121412151216121712181219122012211222122312241225122612271228122912301231123212331234123512361237123812391240124112421243124412451246124712481249125012511252125312541255125612571258125912601261126212631264126512661267126812691270127112721273127412751276127712781279128012811282128312841285128612871288128912901291129212931294129512961297129812991300130113021303130413051306130713081309131013111312131313141315131613171318131913201321132213231324132513261327132813291330133113321333133413351336133713381339134013411342134313441345134613471348134913501351135213531354135513561357135813591360136113621363136413651366136713681369137013711372137313741375137613771378137913801381138213831384138513861387138813891390139113921393139413951396139713981399140014011402140314041405140614071408140914101411141214131414141514161417141814191420142114221423142414251426142714281429143014311432143314341435143614371438143914401441144214431444144514461447144814491450145114521453145414551456145714581459146014611462146314641465146614671468146914701471147214731474147514761477147814791480148114821483148414851486148714881489149014911492149314941495149614971498149915001501150215031504150515061507150815091510151115121513151415151516151715181519152015211522152315241525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- 1])


k = int(input())
l = [str(n) for n in range(1, k + 1)]
x = ''
a = x.join(l)
print(a[k - 1])


string = ''
for i in range(1, 10000):
	a = str(i)
	string = string + a
num = int(input())
s = list(string)
print(s[num - 1])


import sys
input = sys.stdin.readline
n = int(input())
s = ''
cnt = 0
for i in range(1, 10000):
	t = str(i)
	s += t
	cnt += len(t)
	if cnt >= n:
		print(s[n - 1])
		break


k = int(input(''))
t = 0
if k == 0:
	print('Invalid input')
	exit()
while k > 0:
	if k <= 9 * 10 ** t * (t + 1):
		m = k // (t + 1)
		l = k
	k = k - 9 * 10 ** t * (t + 1)
	t += 1
p = l % t
if p == 0:
	n = 10 ** (t - 1) + m - 1
	o = n % 10
else:
	n = 10 ** (t - 1) + m
	o = n // 10 ** (t - p) % 10
print(o)


k = int(input())
x = 0
c = 0
while x < k:
	x += 9 * 10 ** c * (c + 1)
	c += 1
p = (x - k) % c
k = 10 ** c - int((x - k) / c) - 1
k = str(k)
print(k[len(k) - p - 1])


l = int(input())
k = ''
for i in range(1, 10001):
	k = k + str(i)
m = str(k)
print(m[l - 1])


k = int(input())
if k < 10:
	print(k)
else:
	s = ''
	for i in range(1, k + 1):
		s += str(i)
	print(s[k - 1])


a = ''
n = int(input())
for i in range(1, 2778):
	a += str(i)
print(a[n - 1])


import sys, math

def read_int():
	return int(sys.stdin.readline().strip())

def read_int_list():
	return list(map(int, sys.stdin.readline().strip().split()))

def read_string():
	return sys.stdin.readline().strip()

def read_string_list(delim=' '):
	return sys.stdin.readline().strip().split(delim)
seq = ''
for i in range(1, 3000):
	seq += str(i)
print(seq[read_int() - 1])


seq = ''
i = 1
while i <= 10000:
	seq += str(i)
	i += 1
print(seq[int(input()) - 1])


x = input()
z = []
a = 1
for y in range(int(x) + 1):
	z.append(str(a))
	a += 1
b = ''.join(z)
print(b[int(x) - 1])


z = int(input())
string = ''
for i in range(1, z + 2):
	string += str(i)
print(string[z - 1])


a = 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print(a[int(input()) - 1])


x = ''
index = int(input())
for i in range(index + 1):
	x += str(i)
print(x[index])


n = int(input())
(seq, i) = ('1', 1)
while len(str(seq)) < n:
	i += 1
	seq += str(i)
print(seq[n - 1])


k = int(input())
strIn = ''
flag = 1
while len(strIn) < k:
	strIn += str(flag)
	flag += 1
print(strIn[k - 1])


from sys import stdin

def solve(tc):
	k = int(stdin.readline().strip())
	cmp = 9
	ndigit = 1
	while k > cmp * ndigit:
		k -= cmp * ndigit
		cmp *= 10
		ndigit += 1
	num = 10 ** (ndigit - 1) + (k - 1) // ndigit
	pos = (k - 1) % ndigit
	print(str(num)[pos])
	pass
LOCAL_TEST = not __debug__
if LOCAL_TEST:
	infile = __file__.split('.')[0] + '-test.in'
	stdin = open(infile, 'r')
tcs = int(stdin.readline().strip()) if LOCAL_TEST else 1
tc = 1
while tc <= tcs:
	solve(tc)
	tc += 1


n = int(input())
strt = 1
n -= 1
cnt = 9
while n > strt * cnt:
	n -= cnt * strt
	cnt *= 10
	strt += 1
ans = 10 ** (strt - 1)
ans += n // strt
print(str(ans)[n % strt])


index = int(input())
total = 9
n = 1
while index > total:
	total += (n + 1) * 10 ** n * 9
	n += 1
last = 10 ** (n - 1)
total -= n * 9 * last
index = index - total
r = index % n
k = index // n
number = last + k
if r == 0:
	print(str(number - 1)[n - 1])
else:
	print(str(number)[r - 1])


k = int(input())
if k <= 9:
	print(k)
else:
	length = len(str(k))
	places_occupied = 0
	for i in range(length - 1):
		places_occupied += 9 * 10 ** i * (i + 1)
		temp = places_occupied + 9 * 10 ** (i + 1) * (i + 2)
		if temp > k:
			length = i + 2
			break
	digits_string = ''
	for i in range(length - 1):
		digits_string = digits_string + '1'
	numbers_passed = 9 * int(digits_string)
	places_left = k - places_occupied
	if places_left % length == 0:
		numbers_required = places_left // length
		answer_string = str(numbers_passed + numbers_required)
		print(answer_string[len(answer_string) - 1])
	else:
		numbers_required = places_left // length + 1
		answer_string = str(numbers_passed + numbers_required)
		find_index = numbers_required * length - places_left
		print(answer_string[len(answer_string) - find_index - 1])


digit = int(input())
sent = ' '
for i in range(1, 10001):
	sent = sent + '' + str(i)
print(sent[digit])


no = int(input())
ans = ''
for i in range(1, 10000 + 1):
	ans += str(i)
print(ans[no - 1])


k = int(input())
l = []
for i in range(10000):
	l.extend(str(i))
print(l[k])


k = int(input())
k_list = [str(x) for x in range(1, 6000)]
ans_str = ''.join(k_list)
print(ans_str[k - 1])


a = []
n = 1
while len(a) < 10000:
	for i in str(n):
		a.append(int(i))
	n += 1
print(a[int(input()) - 1])


k = int(input())
if k <= 9:
	print(k)
elif k <= 189:
	if (k - 9) % 2 == 0:
		r = (k - 9) / 2
		x = str(r + 9)
		print(x[1:2])
	else:
		r = (k - 9) // 2
		x = str(r + 10)
		print(x[0:1])
elif k <= 2889:
	r = (k - 189) % 3
	if r == 0:
		x = str((k - 189) / 3 + 99)
		print(x[2:3])
	elif r == 1:
		x = str((k - 189) // 3 + 100)
		print(x[0:1])
	else:
		x = str((k - 189) // 3 + 100)
		print(x[1:2])
else:
	r = (k - 2889) % 4
	if r == 0:
		x = str((k - 2889) / 4 + 999)
		print(x[3:4])
	else:
		x = str((k - 2889) // 4 + 1000)
		if r == 1:
			print(x[0:1])
		elif r == 2:
			print(x[1:2])
		else:
			print(x[2:3])


a = int(input())
s = ''
for j in range(1, a + 1):
	s = s + str(j)
print(s[a - 1])


k = int(input())
n = 0
i = 0
while k > n:
	n += pow(10, i) * 9 * (i + 1)
	i = i + 1
n -= pow(10, i - 1) * 9 * i
k -= n
t = (k - 1) / i
r = k % i
if r == 0:
	r = i
m = pow(10, i - 1) + t
m = int(m)
ans = int(m / pow(10, i - r)) % 10
print(ans)

def pow(i):
	n = 1
	for x in range(0, i):
		n *= 10
	return n


x = int(input())
s = [i for i in range(1, 10001)]
st = ''
for i in s:
	st += str(i)
print(st[x - 1])


import bisect
xzy = [10, 190, 2890, 38890, 488890, 5888890, 68888890, 788888890, 8888888890, 98888888890, 1088888888890, 11888888888890]
k = int(input())
digits = bisect.bisect_left(xzy, k)
if k == 10:
	print(1)
elif k > 10:
	apu = k - xzy[digits - 1]
	modulo = apu % (digits + 1)
	dlj = apu // (digits + 1)
	output = 10 ** digits + dlj
	list1 = [i for i in str(output)]
	print(list1[modulo])
else:
	print(k)


s = ''
for i in range(1, 10000):
	s = s + str(i)
n = eval(input())
print(s[n - 1])


n = int(input())
c = 1
total = 0
if n < 10:
	print(n)
else:
	while True:
		total_b = total
		cek = 9 * 10 ** (c - 1) * c
		total += cek
		if n <= total:
			break
		c += 1
	n -= total_b + 1
	urut = n // c
	sisa = n % c
	angka = 10 ** (c - 1) + urut
	print(str(angka)[sisa])


k = int(input())
a = []
for i in range(0, 12):
	s = 9 * pow(10, i) * (i + 1)
	if k <= s:
		break
	else:
		k -= s
pos = i + 1
num = pow(10, pos - 1) + k // pos - 1
if k % pos == 0:
	print(str(num)[-1])
else:
	print(str(num + (0 if pos == 1 else 1))[k % pos - 1])


k = int(input())
s = ''
i = 1
while True:
	s += str(i)
	i += 1
	if len(s) >= k:
		break
print(s[k - 1])


k = int(input())
b = ''
for i in range(1, k + 1):
	b += str(i)
a = []
for i in b:
	a.append(i)
x = a[k - 1]
print(x)


n = int(input())
l = []
for i in range(0, 10001):
	l.append(str(i))
s = ''.join(l)
print(s[n])


n = int(input())
s = ''
l = 0
i = 1
while l != n:
	s = s + str(i)
	i = i + 1
	l = l + 1
print(s[n - 1])


k = int(input())
cad = ''
for i in range(1, k + 1):
	cad = cad + str(i)
print(cad[k - 1])


s = '1'
n = 2
while n < 10005:
	s = s + str(n)
	n = n + 1
x = int(input())
print(s[x - 1])


st = ''
for x in range(10000):
	st += str(x)
print(st[int(input())])


import os
k = int(input())
string = ''
i = 0
while len(string) < k:
	i = i + 1
	string = string + str(i)
print(string[k - 1])


def count(start, k):
	s = '_'
	while len(s) <= k:
		s += str(start)
		start += 1
	return s[k]
print(count(1, int(input())))


k = int(input())
s = ''
a = 0
for i in range(0, k):
	a += 1
	s += str(a)
print(s[k - 1])


k = int(input())
s = ''
now = 1
while len(s) < k:
	s += str(now)
	now += 1
print(s[k - 1])


k = int(input())
if k > 0 and k < 10:
	print(k)
elif k >= 10 and k < 190:
	result = 10 + int((k - 10) / 2)
	if (k - 10) % 2 == 0:
		print(int(result / 10))
	else:
		print(result % 10)
elif k >= 190 and k < 2890:
	result = 100 + int((k - 190) / 3)
	if (k - 190) % 3 == 0:
		print(int(result / 100))
	elif (k - 190) % 3 == 1:
		print(int(result % 100 / 10))
	else:
		print(result % 10)
else:
	result = 1000 + int((k - 2890) / 4)
	if (k - 2890) % 4 == 0:
		print(int(result / 1000))
	elif (k - 2890) % 4 == 1:
		print(int(result % 1000 / 100))
	elif (k - 2890) % 4 == 2:
		print(int(result % 100 / 10))
	else:
		print(result % 10)


k = int(input())
string = ''.join((str(x) for x in range(10000)))
print(int(string[k]))


n = int(input())
i = 1
k = ''
while i <= n:
	k = k + str(i)
	i = i + 1
marr = list(k)
print(int(marr[n - 1]))


n = int(input())
for i in range(1, 10001):
	i = str(i)
	if len(i) >= n:
		for k in range(len(i)):
			n -= 1
			if n == 0:
				print(i[k])
	else:
		n -= len(i)


import math
k = int(input())

def cnt_digit_order(X):
	res = 0
	if X == 0:
		return 0
	for i in range(1, X + 1):
		res += i * (9 * pow(10, i - 1))
	return res
L = -1
leftcnt = 0
for length in range(1, 100):
	if cnt_digit_order(length - 1) < k <= cnt_digit_order(length):
		L = length
		leftcnt = k - cnt_digit_order(length - 1)
		break
M = str(math.ceil(leftcnt / L) + (10 ** (L - 1) - 1))
leftcnt -= 1
leftcnt %= L
print(M[leftcnt])


k = int(input())
k -= 1
c = 9
s = 1
while k >= c * s:
	k -= c * s
	c *= 10
	s += 1
n = 10 ** (s - 1) + k // s
idx = k % s
print(str(n)[idx])


natural_num = ''
for i in range(1, 10001):
	natural_num += str(i)
list_each_digit = []
list_each_digit.append(0)
for letter in natural_num:
	list_each_digit.append(letter)
input_index = int(input())
print(int(list_each_digit[input_index]))


n = int(input())
x = 1
while n > 10 ** (len(str(x)) - 1) * 9 * len(str(x)):
	n -= 10 ** (len(str(x)) - 1) * 9 * len(str(x))
	x *= 10
t = len(str(x))
nadighe = False
while nadighe == False:
	qw = 1
	nadighe = True
	while n > 10 ** (len(str(qw)) - 1) * 9 * t:
		n -= 10 ** (len(str(qw)) - 1) * 9 * t
		nadighe = False
		qw *= 10
	x += qw - 1
while n > len(str(x)):
	n -= len(str(x))
	x += 1
for i in range(len(str(x))):
	if n != 0:
		s = str(x)[i]
		n -= 1
print(s)


n = int(input())
s = ''
for x in range(1, n + 10):
	s += str(x)
print(s[n - 1])


a = int(input())
A = list(range(a + 1))
A = list(''.join(map(str, A)))
print(A[a])


def mp():
	return map(int, input().split())
n = int(input())
l = 0
i = 1
last = 1
while l < n:
	l += len(str(i))
	last = i
	i += 1
last = str(last)
i = l - n + 1
print(last[-i])


bl = ''
for i in range(1, 12345):
	bl += str(i)
n = int(input())
print(bl[n - 1])


l = ''
k = int(input())
index = 0
counter = 1
while True:
	for i in str(counter):
		if index <= k - 1:
			l += i
			index += 1
	counter += 1
	if index > k - 1:
		break
if 1 <= k <= 10000:
	print(l[k - 1])


n = int(input())
i = 1
s = 0
while n - 9 * i * 10 ** (i - 1) > 0:
	n -= 9 * i * 10 ** (i - 1)
	i += 1
if i == 1:
	print(n)
elif i == 2:
	s = 9 + n // i
	if n % 2 == 1:
		print(str(s + 1)[0])
	else:
		print(str(s)[1])
elif i == 3:
	s = 99 + n // i
	if n % 3 == 1:
		print(str(s + 1)[0])
	elif n % 3 == 2:
		print(str(s + 1)[1])
	else:
		print(str(s)[2])
elif i == 4:
	s = 999 + n // i
	if n % i == 1:
		print(str(s + 1)[0])
	elif n % i == 2:
		print(str(s + 1)[1])
	elif n % i == 3:
		print(str(s + 1)[2])
	else:
		print(str(s)[3])


n = int(input())
start = 1
end = 9
nr = 1
ran = 9
l = 1
while 1:
	if n > ran:
		nr = ran
		start = start * 10
		end = end * 10 + 9
		l += 1
		ran = ran + (end - start + 1) * l
	else:
		r = n - nr - 1 * (n > 9)
		print(str(end // 10 + r // l + 1)[r % l])
		break


c = 1
x = int(input())
string = ''
while len(string) < x:
	string += str(c)
	c += 1
print(string[x - 1])


import itertools as it
k = int(input())
seq = ''
for i in it.count(1):
	seq += str(i)
	if len(seq) >= k:
		break
print(seq[k - 1])


k = int(input())
i = 0
d = 1
num = ''
while i < k + 10:
	num += str(d)
	d += 1
	i += len(str(d))
print(num[k - 1])


def scand():
	return int(input())

def scana():
	return [int(x) for x in input().split()]

def count(t):
	ret = 0
	for char in t:
		if char in ['a', 'e', 'i', 'o', 'u']:
			ret += 1
	return ret
t = ''.join([str(t) for t in range(5000)])
n = scand()
print(t[n])


def main():
	x = str()
	c = 1
	k = int(input())
	while True:
		if len(x) > k:
			break
		x += str(c)
		c += 1
	print(x[k - 1])
main()


k = int(input())
s = k
i = 1
number_digits = 1
while s - i * (9 * 10 ** (i - 1)) > 0:
	number_digits = number_digits + 1
	s = s - i * (9 * 10 ** (i - 1))
	i += 1
v = (s - 1) // number_digits
s = s - v * number_digits
ans = 10 ** (number_digits - 1) + v
ans = str(ans)
fans = ans[s - 1]
print(fans)


def main():
	k = int(input())
	s = ''.join(map(str, range(1, 3000)))
	print(s[k - 1])
main()


postion = int(input())
if postion >= 1 and postion <= 10000:
	seq = ''
	for i in range(1, postion + 1):
		seq += str(i)
	print(seq[postion - 1])


def mp():
	return map(int, input().split())

def f(i):
	return (10 ** i - 10 ** (i - 1)) * i
n = int(input())
i = 1
sum = 0
while n - f(i) >= 0:
	n -= f(i)
	sum += f(i) // i
	i += 1
print(str(sum + (n + i - 1) // i)[n % i - 1])


N = 100005
v = []
for i in range(N):
	s = str(i)
	for c in s:
		v.append(c)
	if len(v) > N:
		break
n = int(input())
print(v[n])


n = int(input()) - 1
c = 0
for i in range(11):
	c += 9 * (i + 1) * 10 ** i
	if c > n:
		n -= c - 9 * (i + 1) * 10 ** i
		v = n // (i + 1)
		print(str(10 ** i + v)[n % (i + 1)])
		break


n = 1
k = int(input())
k -= 1
l = ''
while len(l) < k + 100:
	l += str(n)
	n += 1
print(l[k])


k = int(input())
l = ''
for i in range(1, k + 1):
	l = l + str(i)
print(l[k - 1])


def digits_sequence():
	number = int(input())
	if number < 10:
		return number
	string = ''
	temp = 1
	while len(string) < number:
		string += str(temp)
		temp += 1
	return string[number - 1]
A = digits_sequence()
print(A)


k = int(input())
k_ = k
ca = 9
di = 1
tem = 9
while k_ > 0:
	k_ -= ca * di
	ca *= 10
	di += 1
	tem += ca * di
	if k_ == 0:
		break
tem -= ca * di
ca = int(ca / 10)
di -= 1
tem -= ca * di
ca = int(ca / 10)
ca_ = 0
while ca > 0:
	ca_ += ca
	ca = int(ca / 10)
k -= tem
re = int((k + di - 1) // di) + ca_
re_ = k % di
if re_ == 0:
	l = 1
else:
	l = 10 ** (di - re_)
re = int(re // l)
print(re % 10)


k = int(input())
s = ''
num = 1
while len(s) < k:
	s = s + str(num)
	num += 1
print(s[k - 1])


K = int(input())
infinite = ' '
for i in range(1, K + 1):
	infinite += str(i)
print(infinite[K])


T = (0, 9, 189, 2889, 38889)
k = int(input())
for i in T:
	if i - k > 0:
		a = T.index(i)
		break
temp = T[a] - k
x = temp % a
res = 10 ** a - 1 - int(temp / a)
ans = int(res % 10 ** (x + 1) / 10 ** x)
print(ans)


num = int(input())
mainString = ''
mainNumber = 0
while len(mainString) <= num:
	mainNumber += 1
	mainString += str(mainNumber)
print(mainString[num - 1])


k = int(input())
a = ''
for x in range(1, k + 1):
	a += str(x)
print(a[k - 1])


k = int(input())
a = 9
for i in range(1, 12):
	if k <= a * i:
		a = a // 9 + k // i - 1
		if k % i != 0:
			b = str(a + 1)
			c = k % i - 1
			print(b[c])
		else:
			b = str(a)
			print(b[-1])
		break
	else:
		k = k - a * i
		a = a * 10


a = int(input())
b = ''
c = 0
for i in range(0, 10009):
	c += 1
	b += str(c)
print(b[a - 1])


def count(start, k):
	s = '_'
	while len(s) <= k:
		s += str(start)
		start += 1
	return s[k]

def recursion(n, k):
	if k > 9 * 10 ** (n - 1) * n:
		recursion(n + 1, k - 9 * 10 ** (n - 1) * n)
	else:
		print(count(10 ** (n - 1), k))
k = int(input())
if k < 10:
	print(k)
else:
	recursion(1, k)


k = int(input())
n = 1
for i in range(1, 20):
	if k < n + 9 * 10 ** (i - 1) * i:
		print(str(10 ** (i - 1) + (k - n) // i)[(k - n) % i])
		break
	n += 9 * 10 ** (i - 1) * i


a = '1'
k = 1
while len(a) < 10000:
	k += 1
	b = str(k)
	a = a + b
n = int(input())
print(int(a[n - 1]))


def ans(n):
	s = ''
	i = 1
	while len(s) < n:
		s += str(i)
		i += 1
	return int(s[n - 1])
print(ans(int(input())))


k = int(input())
s = ''
for i in range(1, 2800):
	s += str(i)
print(s[k - 1])


import sys

def input():
	return sys.stdin.readline().rstrip()

def slv():
	k = int(input())

	def cnt_special(N):
		if N == 0:
			return 0
		return cnt_special(N - 1) + N * (pow(10, N) - pow(10, N - 1))

	def cnt_digit(N):
		ord = len(str(N))
		bound = ord - 1
		return cnt_special(bound) + ord * (N + 1 - 10 ** bound)
	if k < 10:
		print(k)
	else:
		l = 1
		r = int(1000000000000.0)
		while r - l > 1:
			med = (r + l) // 2
			if cnt_digit(med) >= k:
				r = med
			else:
				l = med
		rep = k - cnt_digit(l)
		print(str(r)[rep - 1])
		return

def main():
	t = 1
	for i in range(t):
		slv()
	return
main()