题解

#include<bits/stdc++.h>
using namespace std;
int main(){
int a,b;
long long n=1;
cin>>a;
cin>>b;
for(int i=1;i<=b;i++){
n=n*a;
if(n>1000000000){
cout<<"-1"<<endl;
return 0;
}
}
cout<<n<<endl;
return 0;
}