#include <iostream>
#include <algorithm>
#include <vector>
#include <string>
#include <map>
#include <set>
#include <fstream>
#include <cmath>
#include <stack>
#include <queue>
#include <iomanip>
#include <bitset>
using namespace std;

int main(){
    int x,y;cin>>x>>y;
    cout << (max(x,y) + abs(x-y))%12 << endl;
}