Harryxun/sft_time huggingface dataset:
### BUGGY CODE ###

from subprocess import*
call(('pypy3','-c',"""
# (コードそのまま)

import sys
mod=10**9+7 ; inf=float("inf")
from math import sqrt, ceil
from collections import deque, Counter, defaultdict #すべてのkeyが用意されてる defaultdict(int)で初期化
input=lambda: sys.stdin.readline().strip()
sys.setrecursionlimit(11451419)
from decimal import ROUND_HALF_UP,Decimal  #変換後の末尾桁を0や0.01で指定
  #Decimal((str(0.5)).quantize(Decimal('0'), rounding=ROUND_HALF_UP))
from functools import lru_cache
from bisect import bisect_left as bileft, bisect_right as biright
#メモ化再帰defの冒頭に毎回 @lru_cache(maxsize=10**10)
#引数にlistはだめ
#######ここまでテンプレ#######
#ソート、"a"+"b"、再帰ならPython3の方がいい
#######ここから天ぷら########

n=int(input())

A=list(map(int,input().split()))
from math import sqrt
def eratosu(n):
  if not isinstance(n,int):
    raise TypeError("nがint型になってねえぞ")
  if n<2:
    raise ValueError('nが2よりちっちぇえぞ')
  prime = []
  limit = sqrt(n)
  data = [i+1 for i in range(1, n)]  #2,3,4,...,n
  while True:
    p = data[0]
    if limit <= p:
        return prime + data
    prime.append(p)
    data = [e  for e in data if e % p != 0]
PRIME=eratosu(10**6+10)
@lru_cache(maxsize=10**10)
def bunkai(n):
    if n==1:return []
    ans=[]
    temp=n
    #そんな早くしなくてよかったり、何回もするわけじゃないなら、
    #for i in range(2,int(sqrt(n))+1): とかで
    primelist= PRIME
    for i in primelist:
        if i>sqrt(n):break
        if temp % i ==0:
            ji=0
            while temp%i==0:
                ji+=1
                temp//=i
            ans.append([i,ji])
    if ans==[]:return([[n,1]])  #素数のとき
    if temp!=1:
        ans.append([temp,1])  #4*5882353とか
    return ans

flag=1
seen={i:0 for i in PRIME}
#print(bunkai(3))
for i in A:
    for l in bunkai(i):
        now=l[0] 
        if now==1:continue
        if seen[now]!=0:
            flag=0
        seen[now]+=1
if flag:
    print("pairwise coprime")
elif max(seen.values())!=n:
    print("setwise coprime")
else:
    print("not coprime")

#print(seen)
"""))

### FIXED CODE ###

n=int(input())
A=list(map(int,input().split()))
def Dlist(BIG):
    D=[1]*(BIG+1)
    for p in range(2,BIG+1):
        if D[p]!=1:
            continue
        for i in range(p,BIG+1,p):
            if D[i]==1:
                D[i]=p
    return D

D=Dlist(max(A))
def SOINSU(num,D): #素因数だけ列挙(setしただけ)
    now=num ; ans=set()
    while now>1:
        ans.add(D[now])
        now//=D[now]
    return ans

seen=[0]*(10**6+10)
flag=1
for num in A:
    for i in SOINSU(num,D):
        if seen[i]!=0: flag=0
        seen[i]+=1
if flag:
    print("pairwise coprime")
elif max(seen)!=n:
    print("setwise coprime")
else:
    print("not coprime")
### BUGGY CODE ###

N = int(input())
S = input()

ans = len(S) - 1
for i in range(len(S)):
    _ans = 0
    for j in range(i):
        if _ans >= ans:
            break

        s = S[j]
        if s == "W":
            _ans += 1

    if _ans >= ans:
        break

    for k in range(i + 1, len(S)):
        if _ans >= ans:
            break

        s = S[k]
        if s == "E":
            _ans += 1

    ans = ans if ans <= _ans else _ans

print(ans)

### FIXED CODE ###

N = int(input())
S = input()

l = 0
r = S.count("E", 1, len(S))
ans = l + r
for i in range(1, len(S)):
    if S[i] == "E":
        r -= 1
    if S[i - 1] == "W":
        l += 1

    ans = ans if ans <= l + r else l + r

print(ans)
### BUGGY CODE ###

s = input()
K = int(input())

alphabet = ["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"]

count = 0

for alp in alphabet:
    ss = []
    # print(alp)
    if alp in s:
        pos = [i for i, x in enumerate(s) if x == alp]
        # print(pos)
        for i in pos:
            for j in range(1,len(s)-i+1):
                ss.append(s[i:i+j])
        ss = list(set(ss))
        ss.sort()
        # print(ss)
        if K - count <= len(ss):
            print(ss[K - count -1])
            break
        else:
            count += len(ss)

### FIXED CODE ###

s = input()
K = int(input())

alphabet = ["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"]

count = 0

for alp in alphabet:
    ss = []
    # print(alp)
    if alp in s:
        pos = [i for i, x in enumerate(s) if x == alp]
        # print(pos)
        for i in pos:
            for j in range(1,6):
                if i+j == len(s) + 1:
                    break
                else:
                    ss.append(s[i:i+j])
        ss = list(set(ss))
        ss.sort()
        # print(ss)
        if K - count <= len(ss):
            print(ss[K - count -1])
            break
        else:
            count += len(ss)
### BUGGY CODE ###

import math
import sys
sys.setrecursionlimit(100000000)

# N = 4
# HRR = [10, 30, 40, 20]
# # N = 2
# HRR = [10, 10]

N = int(input())
HRR = list(map(int,input().split()))
result = []


def calculate(pos, n, hrr, cost):
    if pos == n-1:
        result.append(int(cost))
        return

    if pos + 1 <= n - 1:
        calculate(pos + 1, n, hrr, cost + math.fabs(hrr[pos + 1] - hrr[pos]))

    if pos + 2 <= n - 1:
        calculate(pos + 2, n, hrr, cost + math.fabs(hrr[pos + 2] - hrr[pos]))


calculate(0, N, HRR, 0)
print(min(result))

### FIXED CODE ###

# N = 4
# HRR = [10, 30, 40, 20]
# N = 2
# HRR = [10, 10]

N = int(input())
HRR = list(map(int,input().split()))
result = []
for i in range(N):
    if i == 0:
        result.append(0)
    elif i == 1:
        s1 = result[i - 1] + abs(HRR[i] - HRR[i - 1])
        result.append(s1)
    else:
        s1 = result[i - 1] + abs(HRR[i] - HRR[i - 1])
        s2 = result[i - 2] + abs(HRR[i] - HRR[i - 2])
        result.append(min(s1, s2))

print(result[-1])
### BUGGY CODE ###

# -*- coding:utf-8 -*-

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

a, b, c = 0, 0, 0

am = y // 10000
bm = y // 5000
cm = y // 1000

flag = 0
for i in range(am+1):
    if flag == 1:
        break
    for j in range(bm+1):
        if flag == 1:
            break
        if (9000*i + 4000*j + 1000*n == y) and (n-i-j >= 0):
            print(i, j ,n-i-j)
            flag = 1

if flag == 0:
    print(-1,-1,-1)


### FIXED CODE ###

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

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

a, b, c = 0, 0, 0

am = y // 10000
bm = y // 5000
cm = y // 1000

for i in range(am+1):
    for j in range(bm+1):
        if (9000*i + 4000*j + 1000*n == y) and (n-i-j >= 0):
            print(i, j ,n-i-j)
            sys.exit()
        if (y - 1000*n - 4000*j < 0):
            break
        if (n-i-j < 0):
            break

print(-1,-1,-1)
### BUGGY CODE ###

n = int(input())
for m in range(n):
    count = 0
    for i in range(n):
        x = i + 1
        xx = x * x
        if  x * x >= m+1:
            break
        for j in range(n):
            y = j + 1
            yy = y * y
            if xx + yy + x * y>= m+1:
                break
            for k in range(n):
                z = k + 1
                zz = z * z
                if xx + yy + zz + x * y + y * z + z * x > m+1:
                    break
                elif xx + yy + zz + x * y + y * z + z * x == m+1:
                    count += 1
                    break
    print(count)



### FIXED CODE ###

n = int(input())
ans = [0] * n
count = 0
for i in range(n):
    x = i + 1
    xx = x * x
    if  x * x >= n:
        break
    for j in range(n):
        y = j + 1
        yy = y * y
        if xx + yy + x * y>= n:
            break
        for k in range(n):
            z = k + 1
            zz = z * z
            kotae = xx + yy + zz + x * y + y * z + z * x
            if kotae > n:
                break
            ans[kotae-1] += 1
for i in range(n):
    print(ans[i])
### BUGGY CODE ###

def main():
    s = [input() for l in range(2)]
    N, A = int(s[0]), [int(x) for x in s[1].split()]
    tmp = 1
    for a in A:
        tmp *= a
        if a == 0:
            break
    if tmp > 10**18: tmp = -1
    print(tmp)
    

if __name__ == '__main__':
    main()

### FIXED CODE ###

def main():
    s = [input() for l in range(2)]
    N, A_dct, A = int(s[0]), {int(x): int(x) for x in s[1].split()}, [int(x) for x in s[1].split()]
    if 0 in A_dct:
        print(0)
    else:
        tmp = 1
        for k in A:
            tmp *= k
            if tmp > 10**18:
                tmp = -1
                break
        print(tmp)
    

if __name__ == '__main__':
    main()
### BUGGY CODE ###

from math import *

def cin(): # To take limited number of inputs
    return map(int,input().split())

def cins(): # To take space sepreated strings
    return input.split()

def cino(test=False): # To take individual int input (test = False)
    if not test:
        return int(input())
    else: # To take string input (test = True)
        return input()

def cina(): # array input
  return list(map(int,input().split()))

def ssplit(): # multiple string input
    return list(input().split())

def printlist(l): # To print space seperated array
    for i in l:
        print(i,end=" ")

def main():
    a = cino()
    l = cina()
    ans = prod(l)
    # print(ans)
    if ans>1000000000000000000:
        print(-1)
    else:
        print(ans)


if __name__ == '__main__':
    main()


### FIXED CODE ###

from math import *

def cin(): # To take limited number of inputs
    return map(int,input().split())

def cins(): # To take space sepreated strings
    return input.split()

def cino(test=False): # To take individual int input (test = False)
    if not test:
        return int(input())
    else: # To take string input (test = True)
        return input()

def cina(): # array input
  return list(map(int,input().split()))

def ssplit(): # multiple string input
    return list(input().split())

def printlist(l): # To print space seperated array
    for i in l:
        print(i,end=" ")

def main():
    a = cino()
    l = cina()
    check = True
    suma = 1
    l.sort()
    if l[0]==0:
        print(0)
    else:
        for i in l:
            suma = suma*i
            if suma>1000000000000000000:
                check = False
                break
        if check:
            print(suma)
        else:
            print(-1)


if __name__ == '__main__':
    main()
### BUGGY CODE ###

# D - AtCoder Express 2
# https://atcoder.jp/contests/abc106/tasks/abc106_d

import sys

s2nn = lambda s: [int(c) for c in s.split(' ')]
ss2nn = lambda ss: [int(s) for s in list(ss)]
ss2nnn = lambda ss: [s2nn(s) for s in list(ss)]
i2s = lambda: sys.stdin.readline().rstrip()
i2n = lambda: int(i2s())
i2nn = lambda: s2nn(i2s())
ii2ss = lambda n: [sys.stdin.readline() for _ in range(n)]
ii2nnn = lambda n: ss2nnn(ii2ss(n))

# N 個の都市
# M 本の列車
# Q 個の興味
def main_lte(N, M, Q, LRm, PQq):
    for p, q in PQq:
        ans = 0
        for l, r in LRm:
            if p <= l and r <= q:
                ans += 1
        print(ans)

def main(N, M, Q, LRm, PQq):
    table = [[0] * (N+1) for _ in range(N+1)]
    for l, r in LRm:
        table[l][r] += 1
    for p, q in PQq:
        ans = 0
        for i in range(p, q+1):
            for j in range(i, q+1):
                ans += table[i][j]
        print(ans)

N, M, Q = i2nn()
LRm = ii2nnn(M)
PQq = ii2nnn(Q)
main(N, M, Q, LRm, PQq)


### FIXED CODE ###

# D - AtCoder Express 2
# https://atcoder.jp/contests/abc106/tasks/abc106_d

import sys

s2nn = lambda s: [int(c) for c in s.split(' ')]
ss2nn = lambda ss: [int(s) for s in list(ss)]
ss2nnn = lambda ss: [s2nn(s) for s in list(ss)]
i2s = lambda: sys.stdin.readline().rstrip()
i2n = lambda: int(i2s())
i2nn = lambda: s2nn(i2s())
ii2ss = lambda n: [sys.stdin.readline() for _ in range(n)]
ii2nnn = lambda n: ss2nnn(ii2ss(n))

# N 個の都市
# M 本の列車
# Q 個の興味
def main_lte(N, M, Q, LRm, PQq):
    for p, q in PQq:
        ans = 0
        for l, r in LRm:
            if p <= l and r <= q:
                ans += 1
        print(ans)

def main_lte2(N, M, Q, LRm, PQq):
    table = [[0] * (N+1) for _ in range(N+1)]
    for l, r in LRm:
        table[l][r] += 1
    for p, q in PQq:
        ans = 0
        for i in range(p, q+1):
            for j in range(i, q+1):
                ans += table[i][j]
        print(ans)

def main_lte3(N, M, Q, LRm, PQq):
    table = [[0] * (N+1) for _ in range(N+1)]
    for l, r in LRm:
        table[l][r] += 1
    # 累積輪
    table2 = [[0] * (N+1) for _ in range(N+1)]
    for i in range(1, N+1):
        for j in range(1, N+1):
            table2[i][j] = table2[i][j-1] + table[i][j]
    for p, q in PQq:
        ans = 0
        for i in range(p, q+1):
            ans += table2[i][q] - table2[i][p-1]
        print(ans)

def main(N, M, Q, LRm, PQq):
    table = [[0] * (N+1) for _ in range(N+1)]
    for l, r in LRm:
        table[l][r] += 1
    # 二次元累積輪
    for i in range(1, N+1):
        for j in range(1, N+1):
            table[i][j] += table[i][j-1]
    for i in range(1, N+1):
        for j in range(1, N+1):
            table[i][j] += table[i-1][j]
    for p, q in PQq:
        ans = table[q][q] + table[p-1][p-1] - table[p-1][q] - table[q][p-1]
        print(ans)

N, M, Q = i2nn()
LRm = ii2nnn(M)
PQq = ii2nnn(Q)
main(N, M, Q, LRm, PQq)
### BUGGY CODE ###

N,K = map(int,input().split())
h = list(map(int,input().split()))
dp = [10000000000]*(N)
dp[0] = 0

for i in range(N-1):
  for j in range(1,K+1):
    if i+j < N:
      dp[i+j] = min(dp[i+j],dp[i] + abs(h[i+j]-h[i]))
  
print(dp[-1])

### FIXED CODE ###

N,K = map(int,input().split())
h = list(map(int,input().split()))
dp = [10000000000]*(N)
dp[0] = 0

for i in range(N-1):
  for j in range(1,K+1):
    if i+j < N:
      dp[i+j] = min(dp[i+j],dp[i] + abs(h[i+j]-h[i]))
  
print(dp[-1])
### BUGGY CODE ###

#from statistics import median
#import collections
#aa = collections.Counter(a) # list to list || .most_common(2)で最大の2個とりだせるお a[0][0]
#from itertools import combinations # (string,3) 3回
#from collections import deque
#import collections.defaultdict
#import bisect
#
#    d = m - k[i] - k[j]
#    if kk[bisect.bisect_right(kk,d) - 1] == d:
#
#
#
# pythonで無理なときは、pypyでやると正解するかも！！
#
#

import sys
sys.setrecursionlimit(10000)
mod = 10**9 + 7

def readInts():
  return list(map(int,input().split()))
def main():
    x = int(input())
    # なんとか^2じゃない
    a = 1
    for i in range(1,x):
        for j in range(2,x):
            if i**j <= x:
                a = max(a,i**j)
    print(a)
if __name__ == '__main__':
  main()


### FIXED CODE ###

#
# Written by NoKnowledgeGG @YlePhan
# ('ω')
#
#import math
#mod = 10**9+7
#import itertools
#import fractions
#import numpy as np
#mod = 10**4 + 7
"""def kiri(n,m):
  r_ = n / m
  if (r_ - (n // m)) > 0:
    return (n//m) + 1
  else:
    return (n//m)"""
 
def main():
  x = int(input())
  ans = 1
  for i in range(1,x):
    for j in range(2,x):
      if i**j <= x:
        ans = max(ans, i**j)
      else:
        break
  print(ans)
  
if __name__ == '__main__':
  main()
### BUGGY CODE ###

s = raw_input()
n = 0

def mul(s):
    if len(s) < 3:
        return 0
    n = 0
    _res = 0
    j = 0
    while j <= (len(s) - 2):
        j = j + _res
        if j < 0:
            j = 0
        _res = 0
        str = s[j:(j + 3)]
        if str == "ABC":
            n = n + 1
            _res = -2
            s = s[:j] + "BCA" + s[j + 3:]
        else:
             j = j + 1
    return n
print mul(s)

### FIXED CODE ###

def test(s):

	res = 0
	aAdd = 0
	last = ''
	tmp = ''
	for i in xrange(len(s)):
		if tmp and tmp > i:
			continue
		if s[i] == 'A':
			aAdd += 1
		elif s[i:i+2] == 'BC':
			# print aAdd
			res = res + aAdd
			tmp = i + 2
		else:
			aAdd = 0
			last = s[i]


	return res
s=raw_input()
print test(s)
### BUGGY CODE ###

#coding:utf-8

n = int(input())
a = input().split()

list_n = []

for i in range(n):
    list_n.append(0)

for i in a:
    aa = int(i)
    list_n[aa - 1] += 1

basic = 0
for i in list_n:
    basic += i * (i - 1) / 2

ans = 0
for i in range(n):
    ans = 0
    lislis = list_n.copy()
    a1 = int(a[i])
    ans = basic - lislis[a1 - 1] + 1
    print("{}".format(int(ans)))

### FIXED CODE ###

#coding:utf-8

n = int(input())
a = input().split()

list_n = [0 for i in range(n)]
basic = 0

for i in a:
    aa = int(i)
    count = list_n[aa - 1]
    basic += count
    list_n[aa - 1] += 1

ans = 0
for i in range(n):
    ans = 0
    a1 = int(a[i])
    ans = basic - list_n[a1 - 1] + 1
    print("{}".format(int(ans)))
### BUGGY CODE ###

# AtCoder Educational DP Contest
# B Frog 2


def main():
    n, k, *h = map(int, open(0).read().split())

    dp = [0 for _ in range(n)]
    l = [0 if i - k < 0 else i - k for i in range(n)]
    for i, (h_now, l_now) in enumerate(zip(h[1:], l[1:]), 1):
        hs = h[l_now:i]
        dps = dp[l_now:i]
        f = lambda x, y: abs(h_now - x) + y
        *tmp, = map(f, hs, dps)
        dp[i] = min(tmp)

    res = dp[-1]
    print(res)


if __name__ == '__main__':
    main()


### FIXED CODE ###

n, k = map(int, input().split())
hs = list(map(int, input().split()))
dp=[0]*n
dp[0]=0
for i, hi in enumerate(hs):
    if i == 0:
        continue
    s = max(0, i-k)
    dp[i] = min([ml + abs(hl - hi) for ml, hl in zip(dp[s:i], hs[s:i])])
print(dp[-1])
### BUGGY CODE ###

H, N = map(int, input().split())
AB = [0] * N
damage = [0] * N
for i in range(N):
  AB[i] = list(map(int, input().split()))
  damage[i] = AB[i][0]
  
x = min(AB, key = lambda x:x[1])
x = x[1]
  
DP = [10 ** 10] * (H + 1)#ダメージを与える最小魔力
DP[0] = 0

for i in range(1, H + 1):
  for j in range(i):
    if j in damage:
      p = damage.index(j)
      DP[i] = min(DP[i], DP[i - j] + AB[p][1])
  if DP[i] == 10 ** 10:
    DP[i] = x
  
print(DP[H])    


### FIXED CODE ###

H, N = map(int, input().split())
A = [0] * N
B = [0] * N
for i in range(N):
  a, b = list(map(int, input().split()))
  A[i] = a
  B[i] = b
  
#モンスターの体力を i 減らすため消耗する魔力の最小値  
DP = [float("inf")] * (H + max(A) + 1)
DP[0] = 0  
for i in range(len(DP)):
  for j in range(N):
    if i - A[j] >= 0:
      DP[i] = min(DP[i], DP[i - A[j]] + B[j])
#print(DP) 
print(min(DP[H:H + max(A) + 1]))
### BUGGY CODE ###

N = int(input())
A = sorted(list(map(int,input().split())))
B = sorted(list(map(int,input().split())))
C = sorted(list(map(int,input().split())))
ans = 0
for i in range(N):#A[i]固定
    ng = -1#A[i]以下
    ok = N#A[i]より大きい
    while ok-ng >1:#A[i]より大きいBのインデックスを探す
        mid = (ng+ok)//2
        if B[mid]>A[i]:
            ok = mid
        else:
            ng = mid
    #okはA[i]より大きい値で最も小さい
    #ngはA[i]より以下の値で最も大きい
    for j in range(ok,N):#B[j]固定
        ng2 = -1#B[j]以下
        ok2 = N#B[j]より大きい
        while ok2-ng2 > 1:#B[j]より大きいCのインデックスを探す
            mid2 = (ng2 + ok2)//2
            if C[mid2] > B[j]:
                ok2 = mid2
            else:
                ng2 = mid2
        ans += N-1 -(ok2-1)
print(ans)

### FIXED CODE ###

N = int(input())
A = sorted(list(map(int,input().split())))
B = list(map(int,input().split()))
C = sorted(list(map(int,input().split())))
ans = 0
for i in range(N):
    #B[i]より小さいAのインデックスを求める
    ok = -1#B[i]より小さい
    ng = N#B[i]より大きい
    while ng-ok>1:#
        mid = (ok + ng)//2
        if A[mid]<B[i]:
            ok = mid
        else:
            ng = mid
    
    #B[i]より大きいCのインデックスを求める
    ok2 = N
    ng2 = -1
    while ok2-ng2>1:
        mid2 = (ok2+ng2)//2
        if C[mid2] > B[i]:
            ok2 = mid2
        else:
            ng2 = mid2
    
    ans += (ok+1)*(N-ok2)

print(ans)
### BUGGY CODE ###

import sys
input = sys.stdin.readline
M = 10**9+7
n = int(input())
l = list(map(int,input().split()))
x = max(l)
s = bin(x)
u = len(s)-2
o = [0]*u
for i in l:
    x = bin(i)
    x = x[2:]
    a = list(x)
    d = u - len(a)
    a = (["0"] * d) + a
    j = 0
    while(j < len(o)):
        if a[j] == "1":
            o[j] = o[j]+1

        j = j+1

cnt = 0
z = len(o)*[0]
for i in range(len(o)):
    z[i] = len(l)-o[i]


for r in range(len(l)-1):
    i = l[r]
    x = bin(i)
    x = x[2:]
    a = list(x)
    d = u-len(a)
    a = (["0"]*d)+a
    j = u-1
    y = 0
    while(j > -1):
        if a[y] == "1":
            #print(o[])
            o[y] = o[y] - 1

        if a[y] == "0":
            z[y] = z[y]-1

        y = y+1
        j = j-1

    j = u-1
    y = 0
    while(j > -1):
        if a[y] == "0":
            cnt = (cnt+((2**j)*o[y])%M)%M

        if a[y] == "1":
            cnt = (cnt + ((2 ** j) * z[y]) % M) % M

        y = y+1
        j = j-1

print(cnt)

### FIXED CODE ###

def readinput():
    n=int(input())
    l=list(map(int,input().split()))
    return n,l

def main(n,a):
    MOD=10**9+7
    hist=[0]*61
    bs=[]
    for i in range(n):
        # s=list(reversed(bin(a[i])[2:]))
        # for j in range(len(s)):
        #     if s[j]=='1':
        #         hist[j]+=1
        # bs.append(s)

        s=bin(a[i])[2:]
        for j in range(len(s)):
            if s[j]=='1':
                hist[len(s)-j-1]+=1
        # j=0
        # ai=a[i]
        # while ai>0:
        #     if ai&1==1:
        #         hist[j]+=1
        #     ai = ai >> 1
        #     j+=1


    #print(bs)
    #print(hist)
    #print(hist)
    sum=0
    # for i in range(n-1):
    #     s=bs[i]
    #     b=1
    #     for j in range(len(s)):
    #         if s[j]=='0':
    #             sum=(sum+hist[j]*b)%MOD
    #         else:
    #             sum=(sum+( n-i-hist[j] )*b)%MOD
    #             hist[j]-=1
    #         b*=2
    #     for j in range(len(s),61):
    #         sum=(sum+hist[j]*b)%MOD
    #         b*=2
    b=1
    for j in range(61):
        sum=(sum+( hist[j]*(n-hist[j])*b )%MOD )%MOD
        b*=2

    return sum

if __name__=='__main__':
    n,l=readinput()
    ans=main(n,l)
    print(ans)
### BUGGY CODE ###

N, W, H = [int(x) for x in input().split()]

map_x = [False] * W
count_x = 0
map_y = [False] * H
count_y = 0

wifi_x = []
wifi_y = []
for _ in range(N):
    x, y, w = [int(x) for x in input().split()]
    wifi_x.append((x - w, x + w))
    wifi_y.append((y - w, y + w))


def check_x(l):
    for x1, x2 in wifi_x:
        if x1 <= l < x2:
            return True
    return False


def check_y(l):
    for y1, y2 in wifi_y:
        if y1 <= l < y2:
            return True
    return False


ans_x = True
for x in range(W):
    if not check_x(x):
        ans_x = False
        break

if not ans_x:
    for y in range(H):
        if not check_y(y):
            print('No')
            exit()

print('Yes')

### FIXED CODE ###

N, W, H = [int(x) for x in input().split()]

map_x = [0] * W
map_y = [0] * H

for _ in range(N):
    x, y, w = [int(x) for x in input().split()]
    mx = max(0, x - w)
    map_x[mx] = max(map_x[mx], x + w - mx)
    my = max(0, y - w)
    map_y[my] = max(map_y[my], y + w - my)


def check_wifi(wifi):
    m = 0
    end = len(wifi)

    for i, x in enumerate(wifi):
        if x and i + x > m:
            m = i + x

        if m >= end:
            return True

        if i < m:
            continue

        return False

    return False


print('Yes' if check_wifi(map_x) or check_wifi(map_y) else 'No')
### BUGGY CODE ###

strs = input()
N = int(input())

Len = len(strs)

allstr = [] 

for i in range(Len):
    for j in range(i+1):
        allstr.append(strs[i-j:i+1])

allstr2 = list(set(allstr))        
allstr2.sort()

print(allstr2[N-1])

### FIXED CODE ###

strs = input()
N = int(input())

Len = len(strs)

allstr = [] 
flag = 0

for i in range(Len):
    tmp = list(range(i+1))
    tmp.reverse()
    for j in tmp:
#        print(strs[Len-i-1:Len-j])
        allstr.append(strs[Len-i-1:Len-j])
        allstr2 = list(set(allstr))
        if len(allstr2) > 5:
            if allstr[5:6] > allstr[4:5] and flag == 1:
#                print(allstr[5:6], allstr[4:5])
                allstr = allstr[0:5]
                break
            allstr2.sort()
            allstr = allstr2[0:5]
            flag = 1
#            print(allstr2)
        

allstr2 = list(set(allstr))        
allstr2.sort()

print(allstr2[N-1])
### BUGGY CODE ###

n = int(input())
ans = 0
for a in range(1, n+1):
    for b in range(1, n//a+1):
        c = n-a*b
        if a*b+c == n and c >= 1:
            # print(a, b, c)
            ans += 1
print(ans)

### FIXED CODE ###

n = int(input())
ans = 0
for a in range(1, n+1):
    for b in range(1, n//a+1):
        c = n-a*b
        if a*b+c == n and c >= 1:
            # print(a, b, c)
            ans += 1
print(ans)