#include <bits/stdc++.h>
//#include <atcoder/all>
using namespace std;
//using namespace atcoder;

typedef long long ll;
//typedef modint1000000007 mint;
const int MOD = 1000000007;
#define all(x) x.begin(), x.end()
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
const int inf = 1 << 30;
const ll INF = 1LL << 60;
const int dx[8] = {1, 0, -1, 0, -1, -1, 1, 1};
const int dy[8] = {0, 1, 0, -1, -1, 1, -1, 1};
template <class T> bool chmax(T& a, const T& b) { if (a < b) { a = b; return 1; } return 0; }
template <class T> bool chmin(T& a, const T& b) { if (b < a) { a = b; return 1; } return 0; }

int main(){
    string n, m;
    cin >> n >> m;

    int a = n[n.size() - 1] - '0';

    if(m == "0") cout << 1 << endl;
    else if(m == "0") cout << a << endl;
    else{
        int b = stoi(m.substr(max((int)m.size() - 3, 0), 3)) % 4;
        vector<vector<int>> vec = {{0, 0, 0, 0}, {1, 1, 1, 1}, {6, 2, 4, 8}, {1, 3, 9, 7}, {6, 4, 6, 4}, {5, 5, 5, 5}, {6, 6, 6, 6}, {1, 7, 9, 3}, {6, 8, 4, 2}, {1, 9, 1, 9}};
        cout << vec[a][b] << endl;
    }

    return 0;
}