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

struct iofast_t {
    iofast_t() {
        ios::sync_with_stdio(false);
        cin.tie(nullptr);
    }
} iofast;

struct uns_t {} uns;
template <typename Element, typename Head, typename ...Args>
auto vec(Element init, Head arg, Args ...args) {
    if constexpr (sizeof...(Args) == 0) return std::vector(arg, init);
    else return std::vector(arg, vec(init, args...));
}
template <typename Element, typename Head, typename ...Args>
auto vec(uns_t, Head arg, Args ...args) {
    return vec(Element(), arg, args...);
}

template <typename T, typename Compare = less<T>>
T &chmin(T &l, T r, Compare &&f = less<T>()) { return l = min(l, r, f); }
template <typename T, typename Compare = less<T>>
T &chmax(T &l, T r, Compare &&f = less<T>()) { return l = max(l, r, f); }

int main() {
    constexpr int cycle[6][2] = {
        { 0, 0 }, { 1, 1 }, { 2, 4 }, { 3, 3 }, { 4, 4 }, { 5, 1 }
    };

    string n, k; cin >> n >> k;
    reverse(begin(n), end(n));
    reverse(begin(k), end(k));

    int m = (n[0] - '0') % 6;
    for (int i = 1; i < size(n); ++i) {
        m += 4 * (n[i] - '0');
        m %= 6;
    }

    int i = cycle[m][!((k[0] - '0') % 2)];

    cout << "285714"[(i + 5) % 6] << endl;
}