#include <bits/stdc++.h>
typedef  long long ll;
#define INF 1000000000
using namespace std;
#define MOD 1000000007
int main(void){
    string n,m;
    cin>>n>>m;
    ll size_n=n.size(),size_m=m.size();
    int ans;
    int q;
    if(m.size()<2)q=stoi(m);
    else q=stoi(m.substr(m.size()-2,2));
    int p=n[n.size()-1]-'0';
    //cout<<p<<" "<<q<<endl;
    int num[10][4]={{0,0,0,0},{1,1,1,1},{2,4,8,6},{3,9,7,1},{4,6,4,6},{5,5,5,5},{6,6,6,6},{7,9,3,1},{8,4,2,6},{9,1,9,1}};
    int m4=q%4;
    if(m4!=0){
        m4--;
    }else{
        m4=3;
    }
    //cout<<p<<" "<<q<<" "<<m4<<endl;
    if(m=="0"){
        ans=1;
    }else{
        ans=num[p][m4];
    }
    cout<<ans<<endl;
}