#include<bits/stdc++.h> using namespace std; int main(){ int a,b; cin>>a>>b; int res=1; for(int i=1;i<=b;i++){ res=res*a; res=res%1000; } if(res>=100){ cout<<res;

}
else if(res>=10){
	cout<<"0"<<res;
}
else cout<<"00"<<res;
return 0;

}