#include <iostream>
using namespace std;
void ins() {}
template<class T,class... Rest>void ins(T& v,Rest&... rest){cin>>v;ins(rest...);}
#define rep(i,n) for(int i=0,_i=(n);i<_i;++i)

int main() {
  string N, K;
  ins(N, K);

  int r = 0;
  rep(i, N.size()) {
    r = r * 10 + N[i];
    r %= 6;
  }
  if (r == 0 || r == 1 || r == 3)
    cout << "285714"[(5+r)%6] << endl;
  else if (r == 2 || r == 4) {
    if (((K.back() - '0') % 2 == 0) == (r == 2))
      cout << 7 << endl;
    else
      cout << 8 << endl;
  } else
    cout << "21"[(K.back() - '0') % 2] << endl;

  return 0;
}