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

using namespce std;

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

int putere(int x, int n,int m)
{
    int k;
    if(n==0) return 1;
    if(n%2==1) return (x*putere(x,n-1,m))%m;
    k=putere(x,n/2,m)%m;
    return k*k%m;
}


int main()
{
    fin>>n>>p;
    fout<<putere(n,p,10);
    return 0;
}