杭电2035

#include <iostream>using namespace std;int main ()     {    int a, b, i, n;    while(cin >> a >> b, a!=0&&b!=0)     {        n = 1;        for(int i = 0; i < b; i++)         {            n = (a%1000)*(n%1000)%1000;         }        cout <<n<< endl;    }    return 0;}