Harryxun/stf_run huggingface dataset:
#! /usr/bin/env python3
# -*- coding: utf-8 -*-
N, K = [int(x) for x in input().split()]
height = []
for _ in range(N):
    height.append(int(input()))

height.sort()
height.reverse()
sublist = []
for i in range(N-K+1):
    hmax-hmin = height[i]-heght[i+K]
    sublist.append(hmax-hmin)

print(min(sublist))


### FIXED CODE ###

#! /usr/bin/env python3
# -*- coding: utf-8 -*-
N, K = [int(x) for x in input().split()]
height = []
for _ in range(N):
    height.append(int(input()))

height.sort()
height.reverse()
sublist = []
for i in range(N-K+1):
    hmaxhmin = height[i]-height[i+K-1]
    sublist.append(hmaxhmin)

print(min(sublist))
R=int(inport())
print(R**2)

### FIXED CODE ###

r=int(input())
import math
print(2*math.pi*r)
N,M,Q=map(int,input().split())
a=[]
b=[]
c=[]
d=[]
for i in range(Q):
  ta,tb,tc,td=map(int,input().split())
  a+=[ta]
  b+=[tb]
  c+=[tc]
  d+=[td]
maxs=0

def suuretu(n,m):#n桁m以上
  if n>1:
    A=[]
    for i in range(1,9):
      for j in suuretu(n-1,i):
        A+=[10*i+j]
    return A
  else:
    A=[i for i in range(m,10)]
    return A
B=suuretu(N,1)
answer=0
for i in B:
  ans=0
  s=str(i)
  tmpl=[int(s[j]) for j in range(N)]  
  for k in range(Q):
    if tmpl[a[k]-1]-tmpl[b[k]-1]==c[k]:
      ans+=d[i]
  answer=max(answer,ans)
print(answer)

 


### FIXED CODE ###

K=int(input())
A,B=map(int,input().split())
for i in range(A,B+1):
  if i%K==0:
    print("OK")
    break
  if i==B:
    print("NG")
n=int(input())
a=list(map(int,input().split()))
b=list(map(int,input().split()))
c=list(map(int,input().split()))

bef=a[0]-1
man=b[0]

for i in a[1:]:
  if i-1=bef+1:
    man+=c[bef]
  man+=b[i-1]
  bef=i-1
print(man)


### FIXED CODE ###

n=int(input())
a=list(map(int,input().split()))
b=list(map(int,input().split()))
c=list(map(int,input().split()))

bef=a[0]-1
man=b[bef]

for i in a[1:]:
  ind=i-1
  if ind==bef+1:
    man+=c[bef]
  man+=b[ind]
  bef=ind
print(man)
from scipy.special import comb

n, k = map(int, input().split())

for i in range(1,k+1):
    print((comb(n-k+1, i, exact=True) * comb(k-1, i-1, exact=True))%(1000000000+7))


### FIXED CODE ###

def comb(n, r):
    if n - r < r: r = n - r
    if r == 0: return 1
    if r == 1: return n

    numerator = [n - r + k + 1 for k in range(r)]
    denominator = [k + 1 for k in range(r)]

    for p in range(2,r+1):
        pivot = denominator[p - 1]
        if pivot > 1:
            offset = (n - r) % p
            for k in range(p-1,r,p):
                numerator[k - offset] /= pivot
                denominator[k] /= pivot

    result = 1
    for k in range(r):
        if numerator[k] > 1:
            result *= int(numerator[k])

    return result

n, k = map(int, input().split())



for i in range(1,k+1):
    if (n-k+1) >= i:
        print((comb(n-k+1, i) * comb(k-1, i-1))%(1000000007))
    else:
        print(0)
import fraction
def two_avvreviation(n, m, s, t):
    common = fraction.gcd(n, m)
    s_common = [a for i, a in enumerate(zip(s)) if i % int(n / common + 10 ** -6) == 0]
    t_common = [a for i, a in enumerate(zip(t)) if i % int(m / common + 10 ** -6) == 0]
    ret = int(n * m / common + 10 ** -6) if s_common == t_common else -1
    return ret


N, M = [int(a) for a in input().split()]
S = int(input())
T = int(input())

print(str(two_avvreviation(N, M, S, T)))


### FIXED CODE ###

import fractions


def two_abbreviation(n, m, s, t):
    common = int(fractions.gcd(n, m) + 10 ** -6)
    s_common = [a for i, a in enumerate(zip(s)) if i % int(n / common + 10 ** -6) == 0]
    t_common = [a for i, a in enumerate(zip(t)) if i % int(m / common + 10 ** -6) == 0]
    ret = int(n * m / common + 10 ** -6) if s_common == t_common else -1
    return ret


N, M = [int(a) for a in input().split()]
S = str(input())
T = str(input())

print(str(two_abbreviation(N, M, S, T)))
l = list(map(int,raw_input).split())
if(l[0]+l[1]) > (l[2]+l[3]):
    print "Left"
elif (l[0] + l[1]) == (l[2] + l[3]):
    print "Balanced"
else:
    print "Right"


### FIXED CODE ###

l = map(int,raw_input().split())
if(l[0]+l[1]) > (l[2]+l[3]):
    print "Left"
elif (l[0] + l[1]) < (l[2] + l[3]):
    print "Right"
elif (l[0] + l[1]) == (l[2] + l[3]):
    print "Balanced"
#B - Power Socket
A,B = list(map(int,input().split()))

count = 0
total_plug = 1
for i in range(1,100):
    count += 1
    total_plug += (A - 1)
    if B <= total_plug:
        break
        
print(count)


### FIXED CODE ###

S = input()
T = input()
count = 0
for i in range(3):
  if S[i] == T[i]:
    count += 1
print(count)
n = int(input())
a = list(map(int, input().split(' ')))
counter = 0
def merge(a, left, mid, right):
    global counter
    n1 = mid - left
    n2 = right - mid
    L = []
    R = []
    for i in range(n1):
        L.append(a[left + i])
    for j in range(n2):
        R.append(a[mid + j])
    L.append(500001)
    R.append(500001)
    i=0
    j=0
    for k in range(left, right):
        counter += 1
        if(L[i] <= R[j]):
            a[k] = L[i]
            i += 1
        else:
            a[k] = R[j]
            j += 1

def mergeSort(a, left, right):
    if(left+1 < right):
        mid = (left + right) // 2
        mergeSort(a, left, mid)
        mergeSort(a, mid, right)
        merge(a, left, mid, right)

mergeSort(a, 0, n)
print(" ".join([str(i) for i in a]))
print(counter)



### FIXED CODE ###

import math
sentinel = 1e9 + 1
counter = 0
def merge(a, left, mid, right):
    global counter
    L = a[left:mid] + [sentinel]
    R = a[mid:right] + [sentinel]
    i,j = 0,0
    for k in range(left, right):
        if(L[i] <= R[j]):
            a[k] = L[i]
            i += 1
        else:
            a[k] = R[j]
            j += 1
    counter += right - left
def mergeSort(a, left, right):
    if left+1 < right:
        mid = (left + right) // 2
        mergeSort(a, left, mid)
        mergeSort(a, mid, right)
        merge(a, left, mid, right)


n = int(input())
a = list(map(int, input().split()))
mergeSort(a, 0, n)
print(*a)
print(counter)
N, M = map(int, input().split())
p_S = []
for _ in range(M):
    p_S.append(input().split())
    
p = []
S = []

flag_p = p[0]
flag_ac = 0
AC_sum = 0
WA_sum = 0
WA = 0

for i in range(M):

    if flag_p == p[i]:
        if S[i] == 0 and flag_ac == 0:
            WA += 1
        elif S[i] == 1 and flag_ac == 0:
            AC_sum += 1
            WA_sum += WA
            WA = 0
            flag_ac = 1
            
    else:
        flag_p = p[i]
        flag_ac = 0
        WA_sum += WA
        WA = 0
        if S[i] == 0 and flag_ac == 0:
            WA += 1
        elif S[i] == 1 and flag_ac == 0:
            AC_sum += 1
            WA_sum += WA
            flag_ac = 1

print(AC_sum, WA_sum)

### FIXED CODE ###

import sys

N, M = map(int, input().split())
if M == 0:
    print(0, 0)
    sys.exit()

p_S = []
for _ in range(M):
    p_S.append(input().split())
    
p = []
S = []


for i in range(M):
    p_S[i][0] = int(p_S[i][0])
    p_S[i][1] = int(p_S[i][1] =='AC')
    
p_S.sort(key=lambda x: x[0])

for i in range(M):
    p.append(p_S[i][0])
    S.append(p_S[i][1])

p = list(map(int, p))
S = list(map(int, S))

flag_p = p[0]
flag_ac = 0
AC_sum = 0
WA_sum = 0
WA = 0

for i in range(M):

    if flag_p == p[i]:
        if S[i] == 0 and flag_ac == 0:
            WA += 1
        elif S[i] == 1 and flag_ac == 0:
            AC_sum += 1
            WA_sum += WA
            flag_ac = 1
    else:
        flag_p = p[i]
        flag_ac = 0
        WA = 0
        if S[i] == 0 and flag_ac == 0:
            WA += 1
        elif S[i] == 1 and flag_ac == 0:
            AC_sum += 1
            WA_sum += WA
            flag_ac = 1

print(AC_sum, WA_sum)
r = input()
print(r**2)

### FIXED CODE ###

r = float(input())
print(int(r**2))
if a >= 3200:
  print("red")
else:
  print("pink")

### FIXED CODE ###

a = int(input())
s = input()

if a >= 3200:
  print(s)
else:
  print("red")
a,b,c,d = map(int, input().split())

if b < c or d < a:
    print("No")
else:
    print("Yes")

### FIXED CODE ###

k = int(input())

ans = "ACL" * k

print(ans)
N=int(input())
s=list(map(int,input(),split()))
t=sorted(s)
g=0
for i in range(N):
  if t[i]!=s[i]:
    g+=1
if g==2:
  print("YES")
else:
  print("NO")

### FIXED CODE ###

N=int(input())
s=list(map(int,input().split()))
t=sorted(s)
g=0
for i in range(N):
  if t[i]!=s[i]:
    g+=1
if g==2 or g==0:
  print("YES")
else:
  print("NO")
N,A,B = map(int, input().split())

if abs(A-B)%2==0:
	print(int(abs(A-B)//2))
else:
	min(N-B,A-1)+1+((B=A-1)//2)

### FIXED CODE ###

N,A,B = map(int, input().split())

if abs(A-B)%2==0:
	print(int(abs(A-B)//2))
else:
	print(min(N-B,A-1)+1+((B-A-1)//2))
a=input();print(sum(list(map(int,input().split()))[:int(a[2])]))

### FIXED CODE ###

n,k=map(int,input().split())
print(sum(sorted(list(map(int,input().split())))[:k]))
n = int(input())
sum = 0
for i in str(n):
    sum += int(i)
if(N%sum==0):
    print("Yes")
else:
    print("No")

### FIXED CODE ###

n = int(input())
sum = 0

for i in str(n):
    sum += int(i)
    
if(n%sum==0):
    print("Yes")
else:
    print("No")
n = int(input())
A = list(map(int, input().split()))
q = int(input())
mi = map(int, input().split())
t = {}

def solve(i, m):
    if (m == 0):
        return True
    if (i >= n):
        return False
    if (i,m) in t:
        return t[(i,m)]
    res = solve(i + 1, m) or solve(i + 1, m - A[i])
    t[(i,m)] = res
    return res

for j in range(q):
    if solve(0, mi):
        print("yes")
    else:
        print("no")

### FIXED CODE ###

n = int(input())
A = list(map(int, input().split()))
q = int(input())
mi = map(int, input().split())
t = {}

def solve(i, m):
    if (m == 0):
        return True
    if (i >= n):
        return False
    if (i,m) in t:
        return t[(i,m)]
    res = solve(i + 1, m) or solve(i + 1, m - A[i])
    t[(i,m)] = res
    return res

for m in mi:
    if solve(0, m):
        print("yes")
    else:
        print("no")
import random


def is_prime(q, k=50):
    q = abs(q)
    #計算するまでもなく判定できるものははじく
    if q == 2:
        return True
    if q < 2 or q & 1 == 0:
        return False

    #n-1=2^s*dとし（但しaは整数、dは奇数)、dを求める
    d = (q-1) >> 1
    while d & 1 == 0:
        d >>= 1

    #判定をk回繰り返す
    for i in xrange(k):
        a = random.randint(1, q-1)
        t = d
        y = pow(a, t, q)
        #[0,s-1]の範囲すべてをチェック
        while t != q-1 and y != 1 and y != q-1:
            y = pow(y, 2, q)
            t <<= 1
        if y != q-1 and t & 1 == 0:
            return False
    return True

X = int(input())

while True:
    if is_prime(X):
        break
    X += 1
print(X)





### FIXED CODE ###

import random


def is_prime(q, k=50):
    q = abs(q)
    #計算するまでもなく判定できるものははじく
    if q == 2:
        return True
    if q < 2 or q & 1 == 0:
        return False

    #n-1=2^s*dとし（但しaは整数、dは奇数)、dを求める
    d = (q-1) >> 1
    while d & 1 == 0:
        d >>= 1

    #判定をk回繰り返す
    for i in range(k):
        a = random.randint(1, q-1)
        t = d
        y = pow(a, t, q)
        #[0,s-1]の範囲すべてをチェック
        while t != q-1 and y != 1 and y != q-1:
            y = pow(y, 2, q)
            t <<= 1
        if y != q-1 and t & 1 == 0:
            return False
    return True

X = int(input())

while True:
    if is_prime(X):
        break
    X += 1
print(X)
import sys

args = sys.argv

priceDict = {
    "1":300000,
    "2":200000,
    "3":100000
}

totalPrice = priceDict[args[1]] if args[1] in priceDict.keys() else 0
totalPrice += priceDict[args[2]] if args[2] in priceDict.keys() else 0
totalPrice += 400000 if args[1] is "1" and args[2] is "1" else 0

print(totalPrice)


### FIXED CODE ###

codePlace, implePlace = map(int, input().split(" "))

priceDict = {
    1:300000,
    2:200000,
    3:100000
}

totalPrice = priceDict[codePlace] if codePlace in priceDict.keys() else 0
totalPrice += priceDict[implePlace] if implePlace in priceDict.keys() else 0
totalPrice += 400000 if codePlace == 1 and implePlace == 1 else 0

print(totalPrice)
# -*- coding: utf-8 -*-
def inpl(): return list(map(int, input().split()))
N = int(input())
F = [0]*N
H = inpl()
ans = 0
checked = [0]*1000
while True:
    checked[ans] += 1
    for l in range(N):
        if F[l] < H[l]:
            for r in range(l+1, N):
                if F[r] < H[r]:
                    continue
                break
            else:
                r += 1
            if r > N:
                r = N
            for j in range(l, r):
                F[j] += 1
            if l < r:
                ans += 1
            break
    else:
        break
assert F == H
print(ans)

### FIXED CODE ###

# -*- coding: utf-8 -*-
def inpl(): return list(map(int, input().split()))
N = int(input())
F = [0]*N
H = inpl()
ans = 0
while True:
    for l in range(N):
        if F[l] < H[l]:
            for r in range(l, N):
                if F[r] < H[r]:
                    continue
                break
            else:
                r += 1
            if r > N:
                r = N
            for j in range(l, r):
                F[j] += 1
            ans += 1
            break
    else:
        break
#assert F == H
print(ans)
h, w = map(int, input().split())
table = [list(input()) for _ in range(h))
visited = [["." for _ in range(w)] for _ in range(h)]

mx = [0, 1, 0, -1]
my = [1, 0, -1, 0]
for i in range(h):
  for  j in range(w):
    if table[i][j] == "#":
      for k in range(4):
        tx, ty = j + mx[k], i + my[k]
        if 0 <= tx <= w and 0 <= ty <= h and table[ty][tx] == "#":
          visited[i][j] = visited[ty][tx] = "#"

for i in range(h):
  for  j in range(w):
    if table[i][j] != visited[i][j]:
      print("No")
      exit(0)
print("Yes")

### FIXED CODE ###

h, w = map(int, input().split())
table = [list(input()) for _ in range(h)]
visited = [["." for _ in range(w)] for _ in range(h)]

mx = [0, 1, 0, -1]
my = [1, 0, -1, 0]
for i in range(h):
  for  j in range(w):
    if table[i][j] == "#":
      for k in range(4):
        tx, ty = j + mx[k], i + my[k]
        if 0 <= tx < w and 0 <= ty < h and table[ty][tx] == "#":
          visited[i][j] = visited[ty][tx] = "#"

for i in range(h):
  for  j in range(w):
    if table[i][j] != visited[i][j]:
      print("No")
      exit(0)
print("Yes")
N,A,B=map(int,input().split())

cnt_blue = 0

# try:
pre_loop_cnt = N // (A+B)
totol_pre_A = sum([A] * pre_loop_cnt)
totol_pre_B = sum([B] * pre_loop_cnt)

total_tmp = totol_pre_A + totol_pre_B
total_tmp += A
if N <= total_tmp:
    cnt_blue = N -  totol_pre_B
else:
    cnt_blue = totol_pre_A + A
# print(cnt_blue)
# except:
#     print(0)

### FIXED CODE ###

N,A,B=map(int,input().split())

cnt_blue = 0
total_tmp = 0

try:
    pre_cnt = N // (A+B)
    total_tmp = pre_cnt * (A+B)
    total_tmp += A
    if N <= total_tmp:
        cnt_blue = N -  (pre_cnt * B)
    else:
        cnt_blue = (pre_cnt * A) + A
    print(cnt_blue)
except Exception as e:
    print(0)
import numpy as np
N,K = map(int,input().split())
q = list(map(int,input().split()))
q = np.array(q)

p = (q + 1) /2
p = p.tolist()

mx = sum(p[:K])
for i in range(0,N-K):
    a = mx - p[i] + p[i+K]
    if a > mx:
        mx = a

print(mx)

### FIXED CODE ###

import numpy as np
N,K = map(int,input().split())
q = list(map(int,input().split()))
q = np.array(q)

p = (q + 1) /2
p = p.tolist()
a = sum(p[:K])
mx = a

for i in range(0,N-K):
    a = a - p[i] + p[i+K]
    if a > mx:
        mx = a

print(mx)
a,b,k=map(int,input().split())
l=list(range(a,b+1))
l=l[:k]+l[-k:]
print(*set(l),sep='\n')

### FIXED CODE ###

A, B, K = map(int, input().split())
num_range = range(A, B + 1)
for i in sorted(set(num_range[:K]) | set(num_range[-K:])):
    print(i)
from math import factorial

n, a, b = map(int, input().split(" "));
v = list(map(int, input().split(" ")))

def product(iterable):
    prod = 1
    for n in iterable:
        prod *= n
    return prod

def npr(n, r):
    return product(range(n - r + 1, n + 1))

def ncr(n, r):
    if r > n // 2:
        r = n - r
    return npr(n, r) // factorial(r)

v.sort();
revv=list(reversed(v))
print(sum(v[-a:])/a)
revpos=revv.index(v[-a]);
num=v.count(v[-a]);
ans=0
if v[-1] == v[-a] == v[-a-1]:
    for i in range(a-revpos, b-revpos+1):
        ans+=ncr(num, i);
    print(ans);
else:
    print(ncr(num,a-revpos));


### FIXED CODE ###

from math import factorial

n, a, b = map(int, input().split(" "));
v = list(map(int, input().split(" ")))

def product(iterable):
    prod = 1
    for n in iterable:
        prod *= n
    return prod

def npr(n, r):
    return product(range(n - r + 1, n + 1))

def ncr(n, r):
    if r > n // 2:
        r = n - r
    return npr(n, r) // factorial(r)

v.sort();
revv=list(reversed(v))
print(sum(v[-a:])/a)
revpos=revv.index(v[-a]);
num=v.count(v[-a]);
ans=0
if v[-1] == v[-a] == v[-a-1]:
    for i in range(a-revpos, b-revpos+1):
        if i > num:
            continue;
        ans+=ncr(num, i);
    print(ans);    
else:
    print(ncr(num,a-revpos));
N = int(input())
A = [int(i) for i in input().split()]

c = 0
for a in A:
    if a % 2 = 1:
        c += 1
if c % 2 == 0:
    print('YES')
else:
    print('NO')


### FIXED CODE ###

N = int(input())
A = [int(i) for i in input().split()]

c = 0
for a in A:
    if a % 2 == 1:
        c += 1
if c % 2 == 0:
    print('YES')
else:
    print('NO')
import math
N = int(input())
AAA = [int(i) for i in input().split()]
BBB = [0]
for a in AAA:
    BBB.append(a+BBB[-1])
ans=[]
print(BBB)
BBB=sorted(BBB)
print(BBB)
prev = math.inf
buff=BBB[0]
ans=[]
for i,b in enumerate(BBB):
    #print(b,prev,buff)
    if b==prev:
        buff+=1
    else:
        if buff>=2:
            #print("append!")
            ans.append(buff)
        buff=1
        prev=b
if buff!=1:
    ans.append(buff)
#print(ans)
print(sum([(i-1)*i//2 for i in ans]))

### FIXED CODE ###

N = int(input())
AAA = [int(i) for i in input().split()]
BBB = [0]
for a in AAA:
    BBB.append(a+BBB[-1])
ans=[]
#print(BBB)
BBB=sorted(BBB)
#print(BBB)
prev = float("inf")
buff=BBB[0]
ans=[]
for i,b in enumerate(BBB):
    #print(b,prev,buff)
    if b==prev:
        buff+=1
    else:
        if buff>=2:
            #print("append!")
            ans.append(buff)
        buff=1
        prev=b
if buff!=1:
    ans.append(buff)
#print(ans)
print(sum([(i-1)*i//2 for i in ans]))
n,k = map(int, input().split())
a = list(map(lambda x : int(x) -1,  map(int, input().split()))

s = {0}
loop = [0]

while a[loop[-1]] not in s:
    loop.append(a[loop[-1]])
    s.add(loop[-1])

    
idx = loop.index(a[loop[-1]])

if k <= len(loop):
    print(loop[k-1]+1)
else:
    print(loop[(k - idx)% (len(loop) - idx) + idx] + 1)


### FIXED CODE ###

n,k = map(int, input().split())
a = list(map(lambda x : int(x) -1,  map(int, input().split())))

s = {0}
loop = [0]

while a[loop[-1]] not in s:
    loop.append(a[loop[-1]])
    s.add(loop[-1])

    
idx = loop.index(a[loop[-1]])

if k < len(loop):
    print(loop[k]+1)
else:
    print(loop[(k - idx)% (len(loop) - idx) + idx] + 1)
N,K =  map(int, input().split())
i=1
A[0]=N
if K!=1:
    while True:
        A[i]=abs(A[i]-K)
        if A[i] in A:
            break
        i+=1
    print(min(A))
else:
    print(0)

### FIXED CODE ###

N,K =  map(int, input().split())
i=1
X=N%K
A=[]
A.append(X)
if K!=1:
    while True:
        A.append(abs(A[i-1]-K))
        if A[i] in (A):
            break
        i+=1
    print(min(A))
else:
    print(0)
a, b, c= map(int,input().split())
if a=<b:
    if b=<c:
        x=a
        y=b
        z=c
    elif b=>c:
        if c=<a:
            x=c
            y=a
            z=b
        else:
            x=a
            y=c
            z=b
if a=>b:
    if b>c:
        x=c
        y=b
        z=a
    elif b=<c:
        if c=<a:
            x=b
            y=c
            z=a
        else:
            x=b
            y=a
            z=c
    

print(str(x)+" "+str(y)+" "+str(z))

### FIXED CODE ###

a= list(map(int,input().split()))
a.sort()
print(a[0], a[1], a[2])
a,b,c=map(int,input().split())                                     
 count=0
 for i in range(a,b):
     if c % i == 0:
         count+=1
 print(count)
 

### FIXED CODE ###

a,b,c=map(int,input().split())                                     
count=0
for i in range(a,b+1):
    if c % i == 0:
        count+=1
print(count)
import math

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

max_ans = math.floor(a*n/b) - a*math.floor(n/b)
for x in range(n, 1, -1):
    ans = math.floor(a*x/b) - a*math.floor(x/b)
    if max_ans <= ans:
        print(ans)
        break
else:
    print(ans)

### FIXED CODE ###

import math

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

if n < b:
    ans = math.floor(a*n/b) - a * math.floor(n/b)
    print(ans)
else:
    ans = a - (a-1) // b - 1
    print(ans)
print(1if eval("%".join(input()))>0else 0)

### FIXED CODE ###

print(1if eval(input().replace(" ","%"))>0else 0)
import math
n=int(input())
a=[]
y=math.log(((n*25)/26)+1,26)
#print(y)
if(y%1==0):
    print('z'*int(y))
else:
  for i in range(y):
    a.append(n%(26**(i+1)))
#print(a)
  for i in range(y):
       a[i]=a[i]//(26**(i))
  a.reverse()
#print(a,y)
  q=['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']    
  for i in range(y+1):
    print(q[a[i]-1],end="")

### FIXED CODE ###

n=int(input())
s='zabcdefghijklmnopqrstuvwxy'
a=''
while(int(n)>0):
        t=n%26
        if t==0:
            n-=26
        a=s[t]+a
        n=n//26
print(a)
d=int(input())

if d=25:
  print("Christmas")
elif d=24:
  print("Christmas Eve")
elif d=23:
  print("Christmas Eve Eve")  
else:
  print("Christmas Eve Eve Eve")

### FIXED CODE ###

d=int(input())

if d==25:
  print("Christmas")
elif d==24:
  print("Christmas Eve")
elif d==23:
  print("Christmas Eve Eve")  
else:
  print("Christmas Eve Eve Eve")
import math

A, B, C, D = map(int, input().split())

lcm = (C*D)//math.gcd(C, D)

a = ((A-1)//C+(A-1)//D)-(A-1)//lcm
b = (B//C+B//D)-B//lcm

print((B-A+1)-(b-a))


### FIXED CODE ###

import fractions

A, B, C, D = map(int, input().split())

lcm = (C*D)//fractions.gcd(C, D)

a = ((A-1)//C+(A-1)//D)-(A-1)//lcm
b = (B//C+B//D)-B//lcm

print((B-A+1)-(b-a))
n = int(input()) #長さ
a = str(input().split()) #帽子の数
x = 0
y = 0
z = 0
ans = 1
 
for i in range(n): #1文字目
  if a[i] == str(x):
    if x == y & x == z:
      ans = ans * 3
    elif x == y:
      ans = ans * 2
   	x = x + 1
  elif a[i] == str(y):
    if y == z:
      ans = ans * 2
    y = y + 1
  else:
    z = z + 1
print(ans % 1000000007)

### FIXED CODE ###

n=int(input())
A=list(map(int,input().split()))
x=0
y=0
z=0
ans=1
for a in A:
    c=0
    X,Y,Z=x,y,z
    if a==x:
        x+=1
        c+=1
    if a==y:
        c+=1
        if a!=X:
            y+=1
    if a==z:
        c+=1
        if a!=X and a!=Y:
            z+=1
    ans=ans*c%1000000007
print(ans)
n = int(input())
dig = 50
A = list(map(lambda x:bin(int(x))[2:].zfill(dig), input().split()))
MOD = 10 ** 9 + 7
ans = 0
d = {i: [0, 0] for i in range(dig)}
for a in A:
    for i in range(len(a)):
        if a[-(i+1)] == '0':
            d[i][0] += 1
        else:
            d[i][1] += 1
for i in range(dig):
    ans += d[i][0] * d[i][1] * (2 ** i)
    ans %= MOD
print(ans)


### FIXED CODE ###

def main():
    n = int(input())
    A = list(map(int, input().split()))
    M = max(A)
    dig = len(bin(M)) - 2
    MOD = 10 ** 9 + 7
    ans = 0
    d = {i: [0, 0] for i in range(dig)}
    for a in A:
        a = bin(a)[2:].zfill(dig)
        for i in range(len(a)):
            if a[-(i+1)] == '0':
                d[i][0] += 1
            else:
                d[i][1] += 1
    for i in range(dig):
        ans += d[i][0] * d[i][1] * pow(2, i, MOD)
        ans %= MOD
    print(ans)
main()
a = int(input())
b = int(input())
s = 1
c = 0
while s<b:
    s += a - 1
    c += 1
print(c)

### FIXED CODE ###

cnm = input().split()
a = int(cnm[0])
b = int(cnm[1])
s = 1
c = 0
while s<b:
    s += a - 1
    c += 1
print(c)
n=int(input)
L=[int(i) for i in input().split()]
count=0
for i in range(1,n+1,2):
  if(L[i-1]%2==0):
    count+=1
print(count)
  

### FIXED CODE ###

n=int(input())
L=[int(i) for i in input().split()]
count=0
for i in range(1,n+1,2):
  if(L[i-1]%2!=0):
    count+=1
print(count)