#include <bits/stdc++.h>
using namespace std;
int main() {
long long n,m;
while(true){
cin>>n;
cin>>m;
if(n==0&&m==0)break;
long rta=pow(n,m);
long long b=0;
b=pow(1000,2500);
cout<<b<<"\n";
}
return 0;
}
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