#include<bits/stdc++.h>
#define in "lgput.in"
#define out "lgput.out"

using namespace std;

ifstream fin(in);
ofstream fout(out);

int n,p;

int putere(int x,int n,int m)
{
    if(n==0) return 1;
    int k = 1;
    while(n--){
        k = (k*x)%m;
    }
    return k;
}


int main()
{
    fin>>n>>p;
    fout<<putere(n,p,1000);
    return 0;
}