Harryxun/stf_run huggingface dataset:
import sys
input=sys.stdin.buffer.readline
#segtree
#https://juppy.hatenablog.com/entry/2019/05/02/%E8%9F%BB%E6%9C%AC_python_%E3%82%BB%E3%82%B0%E3%83%A1%E3%83%B3%E3%83%88%E6%9C%A8_%E7%AB%B6%E6%8A%80%E3%83%97%E3%83%AD%E3%82%B0%E3%83%A9%E3%83%9F%E3%83%B3%E3%82%B0_Atcoder
#####segfunc######
def segfunc(x,y):
    return x|y
def init(init_val):
    #set_val
    for i in range(n):
        seg[i+num-1]=init_val[i]    
    #built
    for i in range(num-2,-1,-1) :
        seg[i]=segfunc(seg[2*i+1],seg[2*i+2]) 
def update(k,x):
    k += num-1
    seg[k] = x
    while k:
        k = (k-1)//2
        seg[k] = segfunc(seg[k*2+1],seg[k*2+2])
def query(p,q):
    if q<=p:
        return ide_ele
    p += num-1
    q += num-2
    res=ide_ele
    while q-p>1:
        if p&1 == 0:
            res = segfunc(res,seg[p])
        if q&1 == 1:
            res = segfunc(res,seg[q])
            q -= 1
        p = p//2
        q = (q-1)//2
    if p == q:
        res = segfunc(res,seg[p])
    else:
        res = segfunc(segfunc(res,seg[p]),seg[q])
    return res
#####単位元######
ide_ele = set()
#num:n以上の最小の2のべき乗
n=int(input())
num =2**(n-1).bit_length()
seg=[ide_ele]*2*num
s=str(input())[2:n+2]
print(s)
init([{ord(s[i])-97}for i in range(n)])
q=int(input())
for _ in range(q):
  quer=str(input())
  x,a,b=quer[2:7:2]
  if x=="1":
    i,c=a,b
    update(int(i)-1,{ord(c)-97})
  else:
    l,r=a,b
    print(len(query(int(l)-1,int(r))))

### FIXED CODE ###

import sys;input=sys.stdin.readline
n=int(input())
s=input()
num=2**(n-1).bit_length()
def segfunc(x,y):return x|y
seg=[0]*(2*num-1)
for i in range(n):seg[i+num-1]=2**(ord(s[i])-97)
for i in range(num-2,-1,-1):seg[i]=segfunc(seg[2*i+1],seg[2*i+2])
def update(i,x):
  i+=num-1;seg[i]=x
  while i:i=(i-1)//2;seg[i]=segfunc(seg[i*2+1],seg[i*2+2])
def query(l,r):
  l+=num-1;r+=num-1
  if l==r:return seg[l]
  s=seg[l];l+=1
  while r-l>1:
    if ~l%2:s=segfunc(seg[l],s)
    if r%2:s=segfunc(seg[r],s);r-=1
    l//=2;r=(r-1)//2
  if l==r:return segfunc(s,seg[l])
  return segfunc(s,segfunc(seg[l],seg[r]))
for _ in range(int(input())):
  quer=input().split()
  if quer[0]=="1":
    _,i,c=quer
    update(int(i)-1,2**(ord(c)-97))
  else:
    _,l,r=quer
    print(sum(map(int,bin(query(int(l)-1,int(r)-1))[2:])))
H, W = map(int, input().split())
for i in range(N):
  c = input()
  print(c)
  print(c)


### FIXED CODE ###

H, W = map(int, input().split())
for i in range(H):
  c = input()
  print(c)
  print(c)
# -*- coding: utf-8 -*-

import math

N = int(input())
result = 1

def make_divisors(n):
    divisors = []
    for i in range(1, int(n**0.5)+1):
        if n % i == 0:
            divisors.append(i)
            if i != n // i:
                divisors.append(n//i)

    # divisors.sort()
    return divisors

divorces = make_divisors(math.factorial(N))

print(len(divorces)%(10**9 + 7))

### FIXED CODE ###

# -*- coding: utf-8 -*-
import math

import math
#試し割法
def trial_division(n):
    #素因数を格納するリスト
    factor = [0]
    #2から√n以下の数字で割っていく
    tmp = int(math.sqrt(n)) + 1
    for num in range(2,tmp):
        while n % num == 0:
            n //= num
            if(num != 1):
                factor.append(num)
    #リストが空ならそれは素数
    if not factor:
        return n
    else:
        factor.append(n)
        return factor

def main():
    N = int(input())
    result = 1
    divisor = []

    for i in range(1, N+1):
        divisor.extend(trial_division(i))

    for i in range(2,N+1):
        result = result*(divisor.count(i)+1)

    print(result % (10 ** 9 + 7))


if __name__ == "__main__":
    main()
import math

# define
a = [0] * int(1e5 + 10)
# functions
# main
n, m = (int(s) for s in input().split())

inp = input()
for i in range(1, n + 1) :
    a[i] = int(inp.split()[i - 1])

lcm = a[1]
for i in range(1, n + 1) : 
    gcd = math.gcd(lcm, a[i])
    lcm = int(lcm * a[i] / gcd)

flag = False
for i in range (1, n + 1):
    if lcm / a[i] % 2 == 0 : flag = True

if flag or lcm > m : print(0)
else : print(int( (m - int(lcm / 2)) / lcm ) + 1)




### FIXED CODE ###

# define
a = [0] * int(1e5 + 100)
# functions
def _gcd(a, b):
    if a % b == 0 : return b
    if b % a == 0 : return a
    while a != 1 and b != 1:
        if a > b: a %= b
        else : b %= a
        if a % b == 0: return b
        if b % a == 0: return a
# main

n, m = (int(s) for s in input().split())

inp = input().split()
for i in range(1, n + 1) :
    a[i] = int(inp[i - 1])

flag = False
lcm = a[1]

for i in range(2, n + 1) :
    gcd = _gcd(lcm, a[i])
    lcm = int(lcm * a[i] / gcd)
    if(lcm > 2 * m):
        flag = True
        break

for i in range (1, n + 1):
    if int(lcm / a[i]) % 2 == 0 : flag = True

if flag : print(0)
else : print(int( (m - int(lcm / 2)) / lcm ) + 1)
int A,B
A=6
B=6
print(A*B)

### FIXED CODE ###

A,B=map(int,input().split())
print(A*B)
from itertools import permutations
N,M,R = map(int,input().split())
r = list(map(int,input().split()))
for i in range(R):
  r[i] -= 1
g = [[10 ** 8] * N for i in range(N)]
for i in range(M):
  A,B,C = map(int,input().split())
  A -= 1 
  B -= 1
  g[A][B] = C
  g[B][A] = C
def warchall_floyd(n):
  for i in range(n):
    #経由する頂点
    for j in range(n):
      #始点
      for k in range(n):
        #終点
        g[j][k] = min(g[j][k],g[j][i]+g[i][k])
        
warchall_floyd(N)
ans = float('inf')
for i in permutations(r):
  now = 0
  for j in range(R-1):
    now += g[i[j]][i[j+1]]
  if now < ans:
    ans = now
print(ans)


### FIXED CODE ###

N = str(input())
if N[0] =="9":
  print("Yes")
elif N[1] == "9":
  print("Yes")
else:
  print("No")
from collections import defaultdict
N = int(input())
L = [list(map(lambda x:int(x)-1, input().split())) for _ in range(N)]


def make_hash(a, b):
    a, b = min(a, b), max(a, b)
    return N*a+b


from_to = defaultdict(lambda: set())
pointed = defaultdict(int)
pointing = defaultdict(int)

for i in range(N):
    for node_from, node_to in zip(L[i], L[i][1:]):
        from_to[make_hash(i, node_from)].add(make_hash(i, node_to))
        pointed[make_hash(i, node_to)] += 1
        pointing[make_hash(i, node_from)] += 1

START = set()
DST = set()
for i in range(N):
    pointed_i = pointed[i]
    pointing_i = pointing[i]
    if pointed_i == 0:
        START.add(i)
    if pointing_i == 0:
        DST.add(i)
if len(START) == 0 or len(DST) == 0:
    print(-1)
else:
    print(ok)


### FIXED CODE ###

from collections import deque

n = int(input())
matches = []
for _ in range(n):
    matches.append(list(map(lambda x: int(x)-1, input().split())))

q = deque(range(n))

days = [0]*n  # 各選手の現在の日付
pairs = [-1]*n  # 次の対戦相手を管理(wait的な)

while q:
    x = q.popleft()  # 試合する人
    if len(matches[x]) == 0:  # 試合が全て終わってる?
        continue
    y = matches[x].pop(0)  # xの次の対戦相手
    if pairs[y] == x:
        day = max(days[x], days[y])+1
        days[x] = day
        days[y] = day
        q.append(x)
        q.append(y)
    else:
        pairs[x] = y

if not any(matches):  # 全ての試合をしょうか
    print(max(days))
else:
    print(-1)
# -*- coding: utf-8 -*-
# スペース区切りの整数の入力
str = list(raw_input())
f = int(str[0]+str[1])
l = int(str[2]+str[3])
# 文字列の入力
if(f == 0):
    if(l == 0):
        ans = "NA"
    if(l > 0 and 13> l):
        ans = "YYMM"
    if(l >= 13):
        ans= "NA"
elif(f > 0 and 13 > f):
    if(l == 0):
        ans = "MMYY"
    if(l > 0 and 13 > l):
        ans = "AMBIGUOUS"
    if(l >= 13):
        ans= "MMYY"
elif(f >= 13):
    if(l == 0):
        ans = "NA"
    if(l > 0 and 13> l):
        ans = "YYMM"
    if(l >= 13):
        ans= "NA"

print ans


### FIXED CODE ###

# -*- coding: utf-8 -*-
# スペース区切りの整数の入力
n, k = map(int, raw_input().split())

# 文字列の入力
str = list(raw_input())

str[k-1] = str[k-1].lower()
# 出力
newstr = "".join(str)
print(newstr)
list = input().split()
N = int(list[0])

list_1 = input().split()
M = int(sum(list_1))

if M-N > 0 :
  print(M-N)
else:
  print(-1)

### FIXED CODE ###

n, m = [int(num) for num in input().split()]
assments = sum(int(num) for num in input().split())
if n - assments < 0:
    print(-1)
else:
    print(n - assments)
A = int(input())
B = int(input())
print((max(A+B,A-B,A*B)))

### FIXED CODE ###

A,B = map(int, input().split())
print(max(A+B,A-B,A*B))
n,m=map(int,input().split())
mod=10**9+7
a = [int(input()) for i in range(m)]
block=[0,1]
x=[True for i in n]
for j in a:
  x[j-1]=False

for i in range(1,n+1):
  if x[i-1]==False:
    block=block[1:]+[0]
  else:
    block=block[1:]+[sum(block)%mod]
print(block[-1])


### FIXED CODE ###

n,m=map(int,input().split())
mod=10**9+7
a = [int(input()) for i in range(m)]
block=[0,1]
x=[True for i in range(n)]
for j in a:
  x[j-1]=False

for i in range(1,n+1):
  if x[i-1]==False:
    block=block[1:]+[0]
  else:
    block=block[1:]+[sum(block)%mod]
print(block[-1])
n=int(input())
dat = list(map(int, input().split()))
dan = []
for e in dat:
    e = list(str(bin(e)))
    e.reverse()

re = 0
for e in dat:
     w=e.index(1)
     
     
print(re)
     

 
      
      
             


    
    
     
                

         
           




### FIXED CODE ###

import sys

def main():
    N = int(input())
    A = [int(_) for _ in input().split()]

    t = 0
    while True:
        for i in range(N):
            if A[i] % 2 == 0:
                A[i] //= 2
            else:
                print(t)
                sys.exit()
        t += 1

main()
S = list(input())
N = [str(int(N[0]) - 1)] + ["9"] * (len(S)-1)
print("{:.0f}".format(max(sum(map(int, N)), sum(map(int,S)))))

### FIXED CODE ###

S = list(input())
N = [str(int(S[0]) - 1)] + ["9"] * (len(S)-1)
print("{:.0f}".format(max(sum(map(int, N)), sum(map(int,S)))))
import sys
n, k = map(int, sys.stdin.readline().split())
li = list(map(int, sys.stdin.readline().split()))
l = len(li)
t = 0
if l > k:
  li.sort().reverse()
  t = sum(li[k:])
print(t)
  

### FIXED CODE ###

import sys
n, k = map(int, sys.stdin.readline().split())
li = list(map(int, sys.stdin.readline().split()))
l = len(li)
t = 0
if l > k:
  li.sort()
  li.reverse()
  t = sum(li[k:])
print(t)
import math

A = int(input())
B = int(input())

X = B / A

print(math.ceil(X))

### FIXED CODE ###

A, B = map(int, input().split())
 
X = ((B-2) // (A-1)) + 1

print(X)
import sys
from bisect import bisect
from itertools import accumulate


def main():
    input = sys.stdin.buffer.readline
    n = int(input())
    a = sorted(map(int, input().split()))
    b = sorted(map(int, input().split()))
    c = sorted(map(int, input().split()))
    # 各中部パーツを乗せられる下部パーツの個数
    b_c_cnt = [len(c[bisect(c, b[i]) :]) for i in range(n)]
    # b_c_cntに後ろから累積和をとる
    acc = list(accumulate(b_c_cnt[::-1]))[::-1]
    ans = 0
    for i in range(n):
        ans += acc[bisect(b, a[i])]
    print(ans)


if __name__ == "__main__":
    main()


### FIXED CODE ###

import sys
from bisect import bisect
from itertools import accumulate


def main():
    input = sys.stdin.buffer.readline
    n = int(input())
    a = sorted(map(int, input().split()))
    b = sorted(map(int, input().split()))
    c = sorted(map(int, input().split()))
    # 各中部パーツを乗せられる下部パーツの個数
    # b_c_cnt = [len(c[bisect(c, b[i]) :]) for i in range(n)]
    b_c_cnt = [0] * n
    past = 0
    for i in range(n):
        pos = bisect(c, b[i], lo=past)
        past = pos
        b_c_cnt[i] = n - pos

    # b_c_cntに後ろから累積和をとる
    acc = list(accumulate(b_c_cnt[::-1]))[::-1] + [0]
    ans = 0
    past = 0
    for i in range(n):
        pos = bisect(b, a[i], lo=past)
        ans += acc[pos]
        past = pos
    print(ans)


if __name__ == "__main__":
    main()
import sys
n,x=map(int,input().split())
l=list(map(int,input().split()))
t=0
c=0
for i in range(n+1):
  t+=l[i]
  c+=1
  if t>x:
    print(c)
    sys.exit()
print(len(l))

### FIXED CODE ###

n,x=map(int,input().split())
l=list(map(int,input().split()))
t=0
c=1
for i in range(n):
    t+=l[i]
    if t>x:
        break
    c+=1
print(c)
s = int(input())
b = [s]
n = len(s)
a = b[n]
if a == '2' or a == '4' or a == '5' or a == '7' or a == '9':
  print('hon')
elif a == '0' or a == '1' or a == '6' or a == '8':
  print('pon')
else:
  print('bon')


### FIXED CODE ###

s = input()
n = len(s)
a = s[n-1:n]
if a == '2' or a == '4' or a == '5' or a == '7' or a == '9':
  print('hon')
elif a == '0' or a == '1' or a == '6' or a == '8':
  print('pon')
else:
  print('bon')
N = int(input())

power = 1
for i in range(1,N+1):
    power *= i
    power %= (10**9 + 7)

print(ans)

### FIXED CODE ###

N = int(input())

power = 1
for i in range(1,N+1):
    power *= i
    power %= 10**9 + 7

print(power)
import sympy as sy
n=int(input())
ans=0
for i in range(1,n+1):
    ans+=i*len(sy.divisors(i))
print(ans)

### FIXED CODE ###

n=int(input())
ans=0
for i in range(1,n+1):
    y=n//i
    ans+=i*(y*(y+1)//2)
print(ans)
a = int(input())
b = str(input())
c = 0
for i in range(0, a):
    if (b[i] == "A") and (b[i+1] == "B") and (b[i+2] == "C"): c+=1
print(c)

### FIXED CODE ###

a = int(input())
b = str(input())
c = b.count("ABC")
print(c)
N = int(input())
 ab = [tuple(map(int,input().split())) for i in range(N)]
 cd = [tuple(map(int,input().split())) for i in range(N)]
 result = []
 for i in range(N):
     xr , yr = ab[i]
     xb, yb = cd[i]
     if xr < xb and yr < yb:
         result.append('BINGO!!!')
 print(len(result))

### FIXED CODE ###

N = int(input())
ab = sorted([ tuple(map(int, input().split())) for x in range(N)], key=lambda x:x[1],reverse=True)
cd = sorted([ tuple(map(int, input().split())) for x in range(N)])
resultx = []
resulty = []
for xb, yb in list(cd):
    for xr, yr in list(ab):
        if (xr, yr) in resultx:
            continue
        if xr < xb and yr < yb:
            resultx.append((xr,yr))
            resulty.append((xb,yb))
            break

print(len(resultx))
# -*- coding: utf-8 -*-
"""
B - Palindromic Numbers
https://beta.atcoder.jp/contests/abc090/tasks/abc090_b

"""
import sys
from sys import stdin
input = stdin.readline


def solve(A, B):
    ans = 0
for i in range(A, B+1):
        s1 = str(i)
        s2 = s1[::-1]
        if s1 == s2:
            ans += 1
    return ans


def main(args):
    A, B = map(int, input().split())
    ans = solve(A, B)
    print(ans)

if __name__ == '__main__':
    main(sys.argv[1:])


### FIXED CODE ###

# -*- coding: utf-8 -*-
"""
B - Palindromic Numbers
https://beta.atcoder.jp/contests/abc090/tasks/abc090_b

"""
import sys
from sys import stdin
input = stdin.readline


def solve(A, B):
    ans = 0
    for i in range(A, B+1):
        s1 = str(i)
        s2 = s1[::-1]
        if s1 == s2:
            ans += 1
    return ans


def main(args):
    A, B = map(int, input().split())
    ans = solve(A, B)
    print(ans)

if __name__ == '__main__':
    main(sys.argv[1:])
K,X = map(int,input().split())

list = []

for i in range(X-K+1,X+K):
    list.append(i)

print(" ".join(map(str,list))


### FIXED CODE ###

a,b = map(int,input().split())

print(max(a+b,a-b,a*b))
n,k=map(int,input().split())
d=list(input().split())
x=list(range(1,10000)[::-1])
for i in d:
  a=[]
  for j in x:
    if i not in str(j):
      a.append(j)
  x=a
import bisect as bi
x=x[::-1]
print(x[bi.bisect_left(x,n)])

### FIXED CODE ###

n,k=map(int,input().split())
d=list(input().split())
x=list(range(1,100000)[::-1])
for i in d:
  a=[]
  for j in x:
    if i not in str(j):
      a.append(j)
  x=a
import bisect as bi
x=x[::-1]
print(x[bi.bisect_left(x,n)])
x, y = map(int, input().split(" "))

#print(x, y)
leg_turtle = 4
leg_clane = 2

if y > x * leg_turtle:
    print("No")
    exit()
elif y < leg_clane * x:
    print("No")
    exit()


import pulp

#線形計画の定義
problem = pulp.LpProblem('clane_turtle', pulp.LpMaximize)

#変数の定義
clane = pulp.LpVariable('clane', 0, 100, 'Integer') 
turtle = pulp.LpVariable('turtle', 0, 100, 'Integer') 

#目的関数の定義
problem += 2 * clane + 4 * turtle

#制約条件の定義
problem += clane + turtle == x
problem += 2 * clane + 4 * turtle <= y

#解く
status = problem.solve()
#print(pulp.LpStatus[status])
c = clane.value()
t = turtle.value()
res_1 =  2 * c + 4 * t
res_2 = c + t
#print(c, t)
if res_1 == y and res_2 == x:
    print("Yes")
else:
    print("No")


### FIXED CODE ###

x, y = map(int, input().split(" "))

#print(x, y)
leg_turtle = 4
leg_clane = 2

if y > x * leg_turtle:
    print("No")
    exit()
elif y < leg_clane * x:
    print("No")
    exit()


for i in range(x + 1):
    clane = i
    turtle = x - i
    #print(clane, turtle)

    legs = 2 * clane + 4 * turtle

    if legs == y:
        print("Yes")
        exit()
    else:
        continue
print("No")
import itertools

N,M,R = map(int, input().split())
r = map(int, input().split())
l = [[1e9 for i in range(N+1)] for i in range(N+1)]

for i in range(M):
    a,b,c = map(int, input().split())
    l[a][b] = l[b][a] = c

for k in range(1,N+1):
    for i in range(1,N+1):
        for j in range(1,N+1):
            t = l[i][k] + l[k][j]
            if l[i][j] > t: l[i][j] = t

ans = 1e9
for a in itertools.permutations(r):
    s = 0
    for i,j in zip(a[:-1],a[1:]):
        s += l[i][j]
    if ans > s: ans = s

print(ans)


### FIXED CODE ###

s=input()
print("Yes" if s/10==9 or s%10==9 else "No")
import math
a,b = map(int, input.strip().split(' '))
print(math.ceil((a+b)/2))

### FIXED CODE ###

import math
a,b = map(int, input().strip().split(' '))
print(math.ceil((a+b)/2))
n,m=map(int,raw_input().split())

while n>0 and m>0:
    ok=0
    list=map(int,raw_input().split())
    if list[0]<m:
        max=list[0]
    for j in range(len(list)-1):
        for k in range(1,len(list)):
            tmp=list[j]+list[k]
            if tmp>max and tmp<=m:
                ok=1
                max=tmp
    if ok==1:
        print(max)
    else:
        print("NONE")
    n,m=map(int,raw_input().split())


### FIXED CODE ###

A=[0 for i in range(2)]
A=input().split()
n=int(A[0])
m=int(A[1])
max=[]
k=0

while n>0 and m>0:
    B=[0 for i in range(n)]
    B=input().split()
    for i in range(n):
        B[i]=int(B[i])
    max1=0
    for i in range(n):
        for j in range(i+1,n):  
            x=0 
            x=B[i]+B[j]
            if max1<x and x<=m:
                max1=x
    max.append(max1)
    A=input().split()
    n=int(A[0])
    m=int(A[1])
    k+=1
for i in range(k):
    if max[i]>0:
        print(max[i])
    else:
        print("NONE")
import math

r = int(input())

s = math.pi * r ** 2 
l = 2 * math.pi * r

print("{0:.6f} {1:.6f}".format(s, l))

### FIXED CODE ###

import math

r = float(input())

s = math.pi * r ** 2 
l = 2 * math.pi * r

print("{0:.6f} {1:.6f}".format(s, l))
from math import floor,ceil,sqrt,factorial,log
from collections import Counter, deque
from functools import reduce
import numpy as np
import itertools
def S(): return input()
def I(): return int(input())
def MS(): return map(str,input().split())
def MI(): return map(int,input().split())
def FLI(): return [int(i) for i in input().split()]
def LS(): return list(MS())
def LI(): return list(MI())
def LLS(): return [list(map(str, l.split() )) for l in input()]
def LLI(): return [list(map(int, l.split() )) for l in input()]
def LLSN(n: int): return [LS() for _ in range(n)]
def LLIN(n: int): return [LI() for _ in range(n)]

N = I()

ans = [0 for _ in range(10**4)]

for i in range(1,100):
    for j in range(1,100):
        for k in range(1,100):
           v = (i+j+k)**2 - (i*j + j*k + k*i)
           if v < 10**4:
            ans[v] += 1

for i in range(N):
    print(ans[i+1])


### FIXED CODE ###

from math import floor,ceil,sqrt,factorial,log
from collections import Counter, deque
from functools import reduce
import numpy as np
import itertools
def S(): return input()
def I(): return int(input())
def MS(): return map(str,input().split())
def MI(): return map(int,input().split())
def FLI(): return [int(i) for i in input().split()]
def LS(): return list(MS())
def LI(): return list(MI())
def LLS(): return [list(map(str, l.split() )) for l in input()]
def LLI(): return [list(map(int, l.split() )) for l in input()]
def LLSN(n: int): return [LS() for _ in range(n)]
def LLIN(n: int): return [LI() for _ in range(n)]

N = I()

ans = [0 for _ in range(10050)]

for i in range(1,100):
    for j in range(1,100):
        for k in range(1,100):
           v = (i+j+k)**2 - (i*j + j*k + k*i)
           if v < 10050:
            ans[v] += 1

for i in range(N):
    print(ans[i+1])
x = input().split()

y = map(int, x)

a = y[0]
b = y[1]

c = a*b
d = (a+b)*2

print ("c, d")

### FIXED CODE ###

x = input().split()   
a = int(x[0])
b = int(x[1])


c = a*b
d = (a+b)*2

print(c, d)
s = input()
l = len(s)
K = int(input())
def com(x,y):
    child = 1
    mother = 1
    for i in range(y):
        child = child * (x-i)
        mother = mother * (i+1)
    if x == 1 and y >=2:
        return 0
    else:    
        return int(child / mother)
tasumae = (9**K)*com(l-1,K) #与えられた数字よりも一桁少ない999999999・・・までの個数
li = list(s)
doko = []
if l < K:
    print(0)
    exit()
if K == 1:
    print(tasumae+int(li[0]))
    exit()
for i in range(1,l):
    if li[i] != "0":
        doko.append(i)
if K == 2:
    if not doko:
        print(tasumae)
        exit()
    ans = int(li[doko[0]]) + 9*(l-1-doko[0]) + tasumae + (int(li[0])-1)*com(l-1,1)*9
    print(ans)
    exit()
if len(doko) = 0:
    print(tasumae)
    exit()
ans = (int(li[0])-1)*com(l-1,2)*(9**2) + (int(li[doko[0]])-1) * 9 * (l-1-doko[0]) + int(li[doko[1]]) + 9*(l-1-doko[1]) + com(l-1-doko[0],2)*(9**2) + tasumae
print(ans)

### FIXED CODE ###

s = input()
l = len(s)
K = int(input())
def com(x,y):
    child = 1
    mother = 1
    for i in range(y):
        child = child * (x-i)
        mother = mother * (i+1)
    if x == 1 and y >=2:
        return 0
    else:    
        return int(child / mother)
tasumae = (9**K)*com(l-1,K) #与えられた数字よりも一桁少ない999999999・・・までの個数
li = list(s)
doko = []
if l < K:
    print(0)
    exit()
if K == 1:
    print(tasumae+int(li[0]))
    exit()
for i in range(1,l):
    if li[i] != "0":
        doko.append(i)
if K == 2:
    if not doko:
        print(tasumae)
        exit()
    ans = int(li[doko[0]]) + 9*(l-1-doko[0]) + tasumae + (int(li[0])-1)*com(l-1,1)*9
    print(ans)
    exit()
if len(doko) == 0:
    print(tasumae)
    exit()
if len(doko) == 1:
    ans = (int(li[0])-1)*com(l-1,2)*(9**2) + (int(li[doko[0]])-1) * 9 * (l-1-doko[0]) + com(l-1-doko[0],2)*(9**2) + tasumae
    print(ans)
    exit()
ans = (int(li[0])-1)*com(l-1,2)*(9**2) + (int(li[doko[0]])-1) * 9 * (l-1-doko[0]) + int(li[doko[1]]) + 9*(l-1-doko[1]) + com(l-1-doko[0],2)*(9**2) + tasumae
print(ans)
c = input()
print(chr(ord("")+1))

### FIXED CODE ###

c = input()

print(chr(ord(c)+1))
#!/usr/bin/env python3
import sys
import math

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

def nr_divide(a: int, b: int, x: int):
    return (b // x - int(math.ceil(a/x))) + 1

def solve(A: int, B: int, C: int, D: int):
    E = lcm(C, D)
    N = B - A + 1
    nrC = nr_divide(A, B, C)
    nrD = nr_divide(A, B, D)
    nrE = nr_divide(A, B, E)
    print(N - nrC - nrD + nrE)
    return


def main():
    def iterate_tokens():
        for line in sys.stdin:
            for word in line.split():
                yield word
    tokens = iterate_tokens()
    A = int(next(tokens))  # type: int
    B = int(next(tokens))  # type: int
    C = int(next(tokens))  # type: int
    D = int(next(tokens))  # type: int
    solve(A, B, C, D)

if __name__ == '__main__':
    main()


### FIXED CODE ###

#!/usr/bin/env python3
import sys
import math
from fractions import gcd

def my_lcm(a: int, b: int):
    return  abs(a*b) // gcd(a, b)

def nr_divide(a: int, b: int, x: int):
    count = b//x - a//x + 1
    if a % x != 0:
        count -= 1
    return count

def solve(A: int, B: int, C: int, D: int):
    E = my_lcm(C, D)
    N = B - A + 1
    nrC = nr_divide(A, B, C)
    nrD = nr_divide(A, B, D)
    nrE = nr_divide(A, B, E)
    count = N - nrC - nrD + nrE
    print(count)
    return

def main():
    def iterate_tokens():
        for line in sys.stdin:
            for word in line.split():
                yield word
    tokens = iterate_tokens()
    A = int(next(tokens))  # type: int
    B = int(next(tokens))  # type: int
    C = int(next(tokens))  # type: int
    D = int(next(tokens))  # type: int
    solve(A, B, C, D)
    return

if __name__ == '__main__':
    main()