#include <bits/stdc++.h>
using namespace std;
int main() {
  int a, b;
  cin >> a >> b;
  if (a > b) {
    swap(a, b);
  }
  if (b - a == 4) {
    cout << (b + 4) % 12 << endl;
  } else {
    cout << a + 4 << endl;
  }
}