#include<bits/stdc++.h>
using namespace std;
int main(){
	int a,b,s=1;
	cin>>a>>b;
	for(int i=1;i<=b;i++)
	{
	 s=s*a;
	 s=s%1000;
	}
	if(s>=10&&s<=99) cout<<'0';
	if(s<10) cout<<"00";
	cout<<s;
	return 0;
}