#include <bits/stdc++.h> using namespace std; using G=vector<vector<int>>; typedef long long ll; #define rep(i,l,r) for(int i=(l);i<(r);++i) int main(){ int x,y; cin>>x>>y; if(max(x,y)-min(x,y)==8){ cout<<min(x,y)+4<<endl; return 0; } int z=max(x,y)+4; if(z>11) cout<<z%4<<endl; else cout<<z<<endl; }