#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;
}