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

int main()
{
    int X, Y;
	cin >> X >> Y;

	if( X > Y ) swap( X, Y );
	int d = Y - X;
	int ans = ( Y + 4 ) % 12;
	if( d == 8 ) ans = ( X + 4 ) % 12;

	cout << ans << endl;
}