C++ :

#include<iostream>
#include<iomanip>
using namespace std;
int main(){
    long long a,b,c=1,n,arr[1000],sum=0,min=999,i,j,k;
    cin>>a>>b;
    for (i=1;i<=b;i++){
        c=c*a;
        if (c>1000000000){
            cout<<-1;
            break;
        }
        if (i==b) cout<<c;
    }
    return 0;
}