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

import sys

def encode(s):
    alp = [0]*26
    for c in s:
        alp[ord(c)-97] += 1
    return tuple(alp)

def main():
    N = int(sys.stdin.readline())
    S = [encode(x.rstrip()) for x in sys.stdin.readlines()]

    dic = {}
    for i, s in enumerate(S):
        if s not in dic:
            dic[s] = {i:0}
        else:
            for x in dic[s].keys():
                dic[s][x]+=1
            dic[s][i]=0

    count = 0
    for i, s in enumerate(S):
        count += dic[s][i]

    print(count)

if __name__=='__main__':
    main()

### FIXED CODE ###

import sys

def main():
    N = int(sys.stdin.readline())
    S = [tuple(sorted(x.rstrip())) for x in sys.stdin.readlines()]

    dic = {}
    for i, s in enumerate(S):
        if s not in dic:
            dic[s] = {i:1}
        else:
            dic[s][i] = len(dic[s])+1

    count = 0
    for i, s in enumerate(S):
        count += len(dic[s]) - dic[s][i]

    print(count)

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

n = int(input())
li = list(map(int, input().split()))

ans = 0
for i in range(n - 2):
    for j in range(i + 1, n - 1):
        for k in range(j + 1, n):
            if li[i] < li[j] + li[k] and li[j] < li[k] + li[i] and li[k] < li[i] + li[j]:
                # print(li[i], li[j], li[k])
                ans += 1

print(ans)


### FIXED CODE ###

import bisect
n = int(input())
li = sorted(list(map(int, input().split())))
ans = 0
for i in range(n - 2):
    for j in range(i + 1, n - 1):
        ans += bisect.bisect_left(li, li[i] + li[j]) - j - 1
print(ans)
### BUGGY CODE ###

import sys
input = sys.stdin.readline
sys.setrecursionlimit(1000000000)
N, K = map(int, input().split())
graph = [[] for _ in range(N)]
for _ in range(N-1):
  a, b = map(lambda x:int(x)-1, input().split())
  graph[a] += [b]
  graph[b] += [a]

global ans
ans = K

def npr(n, r, p):
  e = 1
  for i in range(n, n-r, -1):
    e *= i
    e %= p

  return e
p=10**9+7

def dfs(u, pre):
  global ans
  child = 0
  for v in graph[u]:
    if v != pre:
      dfs(v, u)
      child += 1
  
  if u == 0:
    ans *= npr(K-1, child, p)
  else:
    ans *= npr(K-2, child, p)

dfs(0, -1)
print(ans%p)


### FIXED CODE ###

import sys
sys.setrecursionlimit(100000000)
N, K = map(int, input().split())
ab = [list(map(int, input().split())) for i in range(N-1)]
graph = [[] for _ in range(N)]
used = [-1]*N
ans = K
mod = 10**9+7

for a, b in ab:
  a -= 1
  b -= 1
  graph[a] += [b]
  graph[b] += [a]


def npr(n, r, p):
  e = 1
  for i in range(n, n-r, -1):
    e *= i
    e %= p

  return e

def dfs(u, pre):
  global ans
  child = 0
  for v in graph[u]:
    if v != pre:
      dfs(v, u)
      child += 1
  if u == 0:
    ans *= npr(K-1, child, mod)
  else:
    ans *= npr(K-2, child, mod)

  ans %= mod

dfs(0, -1)
print(ans)
### BUGGY CODE ###

N,K=map(int,input().split())
A=list(map(int,input().split()))
cnt=0
for i in range(N):
    a=A[i]
    if a>=K:
        cnt+=1
        continue
    Ac=A.copy()
    Ac.pop(i)
    dp=[0]*(K-a+1)
    dp[0]=1
    for b in Ac:
        dpc=dp.copy()
        for k in range(K-a+1):
            if k+b>=K:break
            if k+b<K-a:
                dp[k+b]+=dpc[k]
            elif k+b>=K-a:
                dp[K-a]+=dpc[k]
        if dp[K-a]>0:
            cnt+=1
            break
print(N-cnt)

### FIXED CODE ###

N,K=map(int,input().split())
A=list(map(int,input().split()))
A.sort(reverse=True)
S=0
ans=0
for a in A:
    if S+a<K:
        S+=a
        ans+=1
    else:ans=0
print(ans)
### BUGGY CODE ###

if __name__ == "__main__":
      S = (input()).split()
      n = int(S[0])
      q = int(S[1])
      head = 0
      tail = n-1
      que = []
      runtime = 0
      totaltime = 0
      fin = []
      for i in range(0, n):
            que.append((input()).split())
            totaltime = totaltime + int((que[i])[1])
      while runtime < totaltime:
            # now job
            nowjob = que[head]
            jobtime = int(nowjob[1])
            if jobtime > q :
                  jobtime = jobtime - q
                  (que[head])[1] = jobtime
                  tail = head
                  head = (head + 1) % n
                  runtime = runtime + q
            else :
                  runtime = runtime + jobtime
                  if jobtime != 0:
                        fin.append([(que[head])[0], runtime])
                  (que[head])[1] = 0
                  head = (head + 1) % n
      for i in range(0, n):
            print("{} {}".format((fin[i])[0], (fin[i])[1]))

### FIXED CODE ###

if __name__ == "__main__":
      S = (input()).split()
      n = int(S[0])
      q = int(S[1])
      head = 0
      tail = n-1
      que = []
      runtime = 0
      fin = []

      for i in range(0, n):
            que.append((input()).split())

      while head <= tail:
            nowjob = que[head]
            jobtime = int(nowjob[1])
            if jobtime > q :
                  jobtime = jobtime -q
                  jobname = nowjob[0]
                  que.append([jobname, jobtime])
                  runtime = runtime + q
                  head = head + 1
                  tail = tail + 1
            else :
                  runtime = runtime + jobtime
                  fin.append([(que[head])[0], runtime])
                  head = head + 1
      for i in range(0,n):
            print("{} {}".format((fin[i])[0], (fin[i])[1]))
### BUGGY CODE ###

if __name__ == '__main__':
    N = int(input())
    A = list(map(int, input().split()))

    tmp_max_square = 0
    tmp_max_dup_1 = 0
    tmp_max_dup_2 = 0
    while len(A) != 0:
        tmp = A[0]
        tmp_count = A.count(tmp)
        # print(tmp_count)
        if tmp_count >= 4:
            if tmp_max_square < tmp:
                tmp_max_square = tmp

            if tmp_max_dup_2 < tmp < tmp_max_dup_1:
                tmp_max_dup_2 = tmp
            elif tmp_max_dup_1 <= tmp:
                tmp_max_dup_2 = tmp_max_dup_1
                tmp_max_dup_1 = tmp
        elif tmp_count >= 2:
            if tmp_max_dup_2 < tmp < tmp_max_dup_1:
                tmp_max_dup_2 = tmp
            elif tmp_max_dup_1 <= tmp:
                tmp_max_dup_2 = tmp_max_dup_1
                tmp_max_dup_1 = tmp

        for i in range(tmp_count):
            A.remove(tmp)

    square_ans = tmp_max_square * tmp_max_square
    rectan_ans = tmp_max_dup_1 * tmp_max_dup_2
    if square_ans < rectan_ans:
        print(rectan_ans)
    else:
        print(square_ans)


### FIXED CODE ###

if __name__ == '__main__':
    N = int(input())
    A = list(map(int, input().split()))

    A.sort(reverse=True)

    v = []
    while len(A) > 1:
        if len(v) == 2:
            break

        if A[0] == A[1]:
            v.append(A[0])
            A.pop(0)
            A.pop(0)
        else:
            A.pop(0)

    if len(v) == 1 or len(v) == 0:
        print(0)
    else:
        print(v[0] * v[1])
### BUGGY CODE ###

N, K = map(int, input().split())
X = list(map(int, input().split()))
cost = []
for i in range(0, N-K+1):
    window = X[i:i+K]
    cost.append(window[-1]-window[0] + min(abs(window[-1]), abs(window[0])))
print(min(cost))

### FIXED CODE ###

N, K = map(int, input().split())
X = list(map(int, input().split()))
cost = []
for i in range(0, N-K+1):
    #window = X[i:i+K]
    #cost.append(window[-1]-window[0] + min(abs(window[-1]), abs(window[0])))
    cost.append(X[i+K-1]-X[i] + min(abs(X[i+K-1]), abs(X[i])))
print(min(cost))
### BUGGY CODE ###

#!/usr/bin/env python
# -*- coding: utf-8 -*-


def main():
  height, width = map(int, input().split())
  max_value = height * width
  values = []
  queue = []

  for y in range(height):
    values.append([0 if v == '#' else max_value for v in input().strip()])
    queue.extend((x, y) for x, v in enumerate(values[-1]) if v == 0)

  targets = set(queue)

  while len(queue) > 0:
    x, y = queue.pop()
    v = values[y][x] + 1

    targets.remove((x, y))

    if x > 0 and values[y][x - 1] > v:
      values[y][x - 1] = v

      if (x - 1, y) not in targets:
        queue.append((x - 1, y))
        targets.add((x - 1, y))

    if x < width - 1 and values[y][x + 1] > v:
      values[y][x + 1] = v

      if (x + 1, y) not in targets:
        queue.append((x + 1, y))
        targets.add((x + 1, y))

    if y > 0 and values[y - 1][x ] > v:
      values[y - 1][x] = v

      if (x , y - 1) not in targets:
        queue.append((x, y - 1))
        targets.add((x, y - 1))

    if y < height - 1 and values[y + 1][x] > v:
      values[y + 1][x] = v

      if (x , y + 1) not in targets:
        queue.append((x, y + 1))
        targets.add((x, y + 1))

  print(max(max(v) for v in values), flush=True)


if __name__ == '__main__':
  main()



### FIXED CODE ###

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import numpy


def main():
  height, width = map(int, input().split())
  max_value = height + width
  values = []

  for y in range(height):
    values.append([0 if v == '#' else max_value for v in input().strip()])

  values = numpy.array(values)

  for x in range(width - 1):
    values[:, x + 1] = numpy.minimum(values[:, x] + 1, values[:, x + 1])

  for x in range(width - 1, 0, -1):
    values[:, x - 1] = numpy.minimum(values[:, x] + 1, values[:, x - 1])

  for y in range(height - 1):
    values[y + 1, :] = numpy.minimum(values[y, :] + 1, values[y + 1, :])

  for y in range(height - 1, 0, -1):
    values[y - 1, :] = numpy.minimum(values[y, :] + 1, values[y - 1, :])

  print(numpy.max(values), flush=True)


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

import queue as q

N, M = list(map(int, input().split()))
D = {n: set() for n in range(N)}
for m in range(M):
    u, v = map(int, input().split())
    u -= 1
    v -= 1
    D[u].add(v)

S, T = list(map(int, input().split()))
S -= 1
T -= 1

def f():
    close = [set(), set(), set()]
    Q = q.Queue()
    Q.put((S, 0, 0))

    while not Q.empty():
        p, c, l = Q.get()
        if l % 3 == 0 and p == T:
            return c
        close[l].add(p)

        ns = D[p]
        l, c = (l + 1) % 3, c + (l + 1) // 3
        for n in ns:
            if n in close[l]:
                continue
            Q.put((n, c, l))

    return -1

print(f())


### FIXED CODE ###

import sys
input = sys.stdin.readline
N, M = list(map(int, input().split()))

def f(D, S, T):
    close = [[False] * N, [False] * N, [False] * N]
    Q = []
    index = 0
    Q.append((S, 0, 0))

    while len(Q) > index:
        p, c, l = Q[index]
        index += 1
        
        if close[l][p]:
            continue
        
        if l == 0 and p == T:
            return c // 3
        close[l][p] = True

        l, c = (l + 1) % 3, c + 1
        for n in D[p]:
            if close[l][n]:
                continue
            Q.append((n, c, l))
    return -1

if __name__ == "__main__":
    D = {n: set() for n in range(N)}
    for m in range(M):
        u, v = map(int, input().split())
        u -= 1
        v -= 1
        D[u].add(v)

    S, T = list(map(int, input().split()))
    S -= 1
    T -= 1

    print(f(D, S, T))
### BUGGY CODE ###

n,q=map(int,input().split())
stx=[]
for i in range(n):
    s,t,x=map(int,input().split())
    stx.append([s-x,t-x,x])
stx.sort(key=lambda x:x[2])
ds=[]
for i in range(q):
    d=int(input())
    for s,t,x in stx:
        if s<=d<t:
            print(x)
            break
    else:
        print(-1)


### FIXED CODE ###

import sys
from bisect import *

input = sys.stdin.readline

def f(n, q):
    xst = []
    for i in range(n):
        s, t, x = map(int, input().split())
        xst.append([x, s - x, t - x])
    xst.sort()

    ds = []
    for i in range(q):
        d = int(input())
        ds.append(d)

    ans = [-1] * q
    jump = [-1] * q

    for x, s, t in xst:
        i = bisect_left(ds, s)
        fi = bisect_left(ds, t)
        while i < fi:
            if jump[i] != -1:
                i = jump[i]
            else:
                ans[i] = x
                jump[i] = fi
                i += 1

    print(*ans, sep="\n")

n, q = map(int, input().split())
f(n, q)
### BUGGY CODE ###

num = int(input())
nums = list(map(int,input().split()))
ans = 1
for j in nums:
    ans = ans * j
if(ans > 1000000000000000000):
    print('-1')
else:
    print(ans)


### FIXED CODE ###

n = int(input())
a = [int(_) for _ in input().split()]
a.sort()
ans = 1
for i in a:
    if i == 0:
        ans = 0
        break
    ans *= i
    if ans > 10**18:
        ans = -1
        break
 
print(ans)
### BUGGY CODE ###

from collections import* #defaultdict Counter deque appendleft
import sys
input=sys.stdin.readline
import time
t=time.time()

def main():
    n=int(input())
    d=[[]]+[deque(map(int,input().split()))for i in n*[0]]

    c=0
    while any(d):
        c+=1
        f=0
        skip=set()
        for i in range(1,n+1):
            if i not in skip:
                if d[i]:
                    if d[i][0] in skip:
                        continue
                    elif i==d[d[i][0]][0]:
                        oppo=d[i].popleft()
                        d[oppo].popleft()
                        skip.add(oppo)
                        skip.add(i)
                        f=1

        if not f:
            print(-1)
            exit()
        if abs(time.time()-t)>1:
            print(n*(n-1)//2)

    print(c)

if __name__ == '__main__':
    main()

### FIXED CODE ###

from collections import* #defaultdict Counter deque appendleft
import sys
input=sys.stdin.readline
import time
t=time.time()

def main():
    n=int(input())
    d=[[]]+[deque(map(int,input().split()))for i in n*[0]]

    c=0
    while any(d):
        c+=1
        f=0
        skip=set()
        for i in range(1,n+1):
            if i not in skip:
                if d[i]:
                    if d[i][0] in skip:
                        continue
                    elif i==d[d[i][0]][0]:
                        oppo=d[i].popleft()
                        d[oppo].popleft()
                        skip.add(oppo)
                        skip.add(i)
                        f=1

        if not f:
            print(-1)
            exit()
        if abs(time.time()-t)>1:
            print(n*(n-1)//2)
            exit()

    print(c)

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

n, k = map(int, input().split())
s = input()
rev_s = s + s[::-1]
mido = "z" * n
for i in range(n + 1):
    if mido > rev_s[i:i + n]:
        mido = rev_s[i:i + n]
ind = float("inf")
for i in range(n):
    if mido[i] != mido[0]:
        if i < ind:
            ind = i
ans = ind * (2 ** (k - 1))
print((mido[0] * ans + mido[ind:ind + n - ans])[:n])

### FIXED CODE ###

n, k = map(int, input().split())
s = input()
rev_s = s + s[::-1]
mido = "z" * n
for i in range(n + 1):
    if mido > rev_s[i:i + n]:
        mido = rev_s[i:i + n]
ind = float("inf")
for i in range(n):
    if mido[i] != mido[0]:
        if i < ind:
            ind = i
ans = ind * (2 ** min(k - 1, 20))
print((mido[0] * ans + mido[ind:ind + n - ans])[:n])
### BUGGY CODE ###

while True:
	H, W = list(map(int, input().split()))
	if H == 0 and W == 0:
		break
	else:
		a = list(input() for i in range(H))
		visitedlist = []
		h = 0
		w = 0
		while True:
			if (h, w) not in visitedlist:
				visitedlist.append([h, w])
				if a[h][w] == '>':
					w += 1
				if a[h][w] == '<':
					w -= 1
				if a[h][w] == '^':
					h -= 1
				if a[h][w] == 'v':
					h += 1
				if a[h][w] == '.':
					print(w, h)
					break
			else:
				print('LOOP')
				break
				

### FIXED CODE ###

while True:
	H, W = list(map(int, input().split()))
	if H == 0 and W == 0:
		break
	else:
		a = list(input() for i in range(H))
		visitedlist = []
		h = 0
		w = 0
		while True:
			if [h, w] not in visitedlist:
				visitedlist.append([h, w])
				if a[h][w] == '>':
					w += 1
				if a[h][w] == '<':
					w -= 1
				if a[h][w] == '^':
					h -= 1
				if a[h][w] == 'v':
					h += 1
				if a[h][w] == '.':
					print(w, h)
					break
			else:
				print('LOOP')
				break
### BUGGY CODE ###

s = input()
n = len(s)
mod = 2019
dp = [0 for i in range(n)]
for i,c in enumerate(s):
    dp[i] = int(c) % mod

cum = [0]*n
cum[0] = dp[0]
cum[n-1] = int(s[-1]) % mod
for i in range(0, n-1)[::-1]:
    a = int(s[i])*10**(n-1-i) % mod
    cum[i] = (cum[i+1]+a) % mod
cnt = [0]*mod

ans = 0
for i in cum[::-1]:
    ans += cnt[i]
    cnt[i] += 1
    if i == 0:
        ans += 1
print(ans)

### FIXED CODE ###

s = input()
n = len(s)
mod = 2019

cum = [0]*n
cum[n-1] = int(s[-1]) % mod
d = [1]*n
for i in range(n-1)[::-1]:
    d[i] = d[i+1]*10%mod

for i in range(0, n-1)[::-1]:
    a = int(s[i]) * d[i] % mod
    cum[i] = (cum[i+1]+a) % mod
cnt = [0]*mod

ans = 0
for i in cum[::-1]:
    ans += cnt[i]
    cnt[i] += 1
    if i == 0:
        ans += 1
print(ans)
### BUGGY CODE ###

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


def calc_yz(target, limit):
    yz_list = []
    for y in range(limit + 1):
        z = target - y
        if 0 <= z <= limit:
            yz_list.append([y, z])
    return yz_list


def calc_xyz(target, limit):
    xyz_list = []
    for x in range(limit + 1):
        yz_sum = target - x
        if yz_sum < 0:
            continue
        yz_list = calc_yz(yz_sum, limit)
        for yz in yz_list:
            xyz_list.append([x] + yz)
    return xyz_list


print(len(calc_xyz(s, min(s, k))))


### FIXED CODE ###

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


def calc_xyz(target, limit):
    cnt = 0
    for x in range(min(limit, target) + 1):
        yz_sum = target - x
        for y in range(min(limit, yz_sum) + 1):
            if 0 <= target - x - y <= limit:
                cnt += 1
    return cnt


print(calc_xyz(s, k))
### BUGGY CODE ###

# -*- coding: utf-8 -*-
N, Y = map(int, input().split())
cnt = 0
for x in range(N+1):
    for y in range(N+1):
        for z in range(N+1):
            if N == x+y+z:
                if Y == 10000*x+5000*y+1000*z:
                    cnt = 1
                    li = [x, y, z]          
if cnt == 1:
    print(li[0], li[1], li[2])
else:
    print(-1, -1, -1)
                

### FIXED CODE ###

# -*- coding: utf-8 -*-
from sys import exit
n, y  = map(int, input().split())
for i in range(n+1):
    for j in range(n+1-i):
        if 10000*i+5000*j+1000*(n-i-j) == y:
            print(i, j, n-i-j)
            exit()
print(-1, -1, -1)
### BUGGY CODE ###

X = int(input())

num = X // 100

res = 0

for a in range(num+1):
    for b in range(num-a+1):
        for c in range(num-(a+b)+1):
            for d in range(num-(a+b+c)+1):
                for e in range(num-(a+b+c+d)+1):
                    for f in range(num-(a+b+c+d+e)+1):
                        if a*100 + b*101 + c*102 + d*103 + e*104 + f*105 == X:
                            res = 1
                            break

print(res)


### FIXED CODE ###

X = int(input())

if X >= 2000:
    print(1)

else:
    num = X // 100
    res = 0

    for a in range(num+1):
        for b in range(num-a+1):
            for c in range(num-(a+b)+1):
                for d in range(num-(a+b+c)+1):
                    for e in range(num-(a+b+c+d)+1):
                        for f in range(num-(a+b+c+d+e)+1):
                            if a*100 + b*101 + c*102 + d*103 + e*104 + f*105 == X:
                                res = 1
                                break

    print(res)
### BUGGY CODE ###


N, K = map(int, input().split())
a = [int(x) for x in input().split()]

beautifuls = []
for i in range(0, len(a)):
    for j in range(i+1, len(a)+1):
        beautiful = sum(a[i:j])
        beautifuls.append(beautiful)

x_ = 0
t = 1
count = 0
while 1:
    for i in range(len(beautifuls)):
        if eval(str(bin((x_ + 2**(t-1)) & beautifuls[i]))) == x_+ 2**(t-1):
            count += 1
            if count == K:
                x_ += 2**(t-1)
                t = 0
                break
    count = 0
    t += 1
    if t > 40:
        break

print(x_)


### FIXED CODE ###

import sys, re
from collections import deque, defaultdict, Counter
from math import ceil, sqrt, hypot, factorial, pi, sin, cos, radians
from itertools import accumulate, permutations, combinations, product, groupby
from operator import itemgetter, mul
from copy import deepcopy
from string import ascii_lowercase, ascii_uppercase, digits
from bisect import bisect, bisect_left
from fractions import gcd
from heapq import heappush, heappop
from functools import reduce
def input(): return sys.stdin.readline().strip()
def INT(): return int(input())
def MAP(): return map(int, input().split())
def LIST(): return list(map(int, input().split()))
def ZIP(n): return zip(*(MAP() for _ in range(n)))
sys.setrecursionlimit(10 ** 9)
INF = float('inf')
mod = 10 ** 9 + 7

N, K = MAP()
a = LIST()

l = []

for i in range(1, N+1):
	tmp = sum(a[:i])
	for j in range(N-i+1):
		l.append(tmp)
		tmp -= a[j]
		if j+i <= N-1:
			tmp += a[j+i]

ans = 0
for i in range(max(l).bit_length()-1, -1, -1):
	nextl = []
	for x in l:
		if (x>>i)&1:
			nextl.append(x)
	if len(nextl) >= K:
		ans += 1<<i
		l = nextl
print(ans)
### BUGGY CODE ###

N, Q = map(int, raw_input().split())
string = raw_input()
a = []
for i in range(Q):
    a.append(map(int, raw_input().split()))
test_dict = {}
for j, temp in enumerate(a):
    #print(temp)
    str_sub = string[temp[0]-1:temp[1]]
    #print('j',j)
    if j == 0:
        test_dict[str_sub] = str_sub.count('AC')
        result = str(test_dict[str_sub])
        continue
    if test_dict.get(str_sub) and j >= 1:
        #print(test_dict.get(str_sub))
        result += '\n' + str(test_dict.get(str_sub))
        continue
    test_dict[str_sub] = str_sub.count('AC')
    result += '\n' + str(test_dict[str_sub])
    #print(test_dict[str_sub])
    #print('result', result)
print(result)


### FIXED CODE ###

N, Q = map(int, raw_input().split())
string = raw_input()
cnt = [0]
for i in range(N):
#    print(i)
#    print(string[i-2:i])
#    if i == 0:
#        cnt.append(0)
#        continue
    if string[i-1:i+1] == 'AC':
        cnt.append(cnt[i]+1)
        continue
    cnt.append(cnt[i])

for j in range(Q):
    #print(j)
    pare = map(int, raw_input().split())
    print(cnt[pare[1]] - cnt[pare[0]])
### BUGGY CODE ###

n = int(input())
a = list(map(int, input().split()))
m = 1
for i in a:
    m *= i
if m > 10**18:
    m = -1
print(m)


### FIXED CODE ###

n = int(input())
a = list(map(int, input().split()))
m = 1
if 0 in a:
    m = 0
else:
    for i in a:
        m *= i
        if m > 10**18:
            m = -1
            break
print(m)
### BUGGY CODE ###

N = int(input())
S = str(input())
V = []
f=0
s=set()
for i in range(10):
    for j in range(10):
        for k in range(10):
            V.append(str(i)+str(j)+str(k))

for v in V:
    for a in range(N):
        if S[a]==v[0]:
            for b in range(a+1, N):
                if S[b]==v[1]:
                    for c in range(b+1, N):
                        if S[c]==v[2]:
                            s.add(v)
print(len(s))

### FIXED CODE ###

N = int(input())
S = str(input())
V = []
f=0
s=set()
for i in range(10):
    for j in range(10):
        for k in range(10):
            V.append(str(i)+str(j)+str(k))

for v in V:
    for a in range(N):
        if S[a]==v[0]:
            for b in range(a+1, N):
                if S[b]==v[1]:
                    for c in range(b+1, N):
                        if S[c]==v[2]:
                            s.add(v)
                            break
                    break
            break
print(len(s))
### BUGGY CODE ###

a,b=map(int,input().split())
ans=1
for i in range(a,b+1):
    ans*=i
if ans==0:
    print("Zero")
else:
    print("Positive" if ans>0 else "Negative")

### FIXED CODE ###

a,b=map(int,input().split())
if a<=0 and b>=0:
    print("Zero")
elif a<0 and b<0:
    print("Negative" if (a-b-1)%2==1 else "Positive")
else:
    print("Positive")
### BUGGY CODE ###

N, P = map(int, input().split())

d = 1
i = 2
if N == 1:
  d = P
else:
  while i-1 <= pow(P, 1/N):
    if P % i**N == 0:
      P //= i**N
      d *= i
    else:
      i += 1
print(d)

### FIXED CODE ###

N, P = map(int, input().split())

if N == 1:
  d = P
else:
  d = 1
  i = 2
  while i <= round(pow(P, 1/N)):
    if P % i**N == 0:
      P //= i**N
      d *= i
    else:
      i += 1
print(d)