#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll a, b;
int main()
{
#ifndef ONLINE_JUDGE
    freopen("data.in", "r", stdin);
    freopen("data.out", "w", stdout);
#endif
    scanf("%lld%lld", &a, &b);
    ll cnt = 1;
    if (a == 1)
    {
        printf("1");
    }
    else
    {
        for (int i = 1; i <= b; i++)
        {
            cnt *= a;
            if (cnt > 1000000000)
            {
                printf("-1");
                return 0;
            }
        }
    }
    printf("%lld", cnt);
    return 0;
}

错了8和7两个点 求助