#include <bits/stdc++.h>
#define rep(i,a,b) for(int i=(a);i<(b);++i)
using namespace std;
using pii = pair<int,int>;
using ll = long long;
using ull = unsigned long long;
using lll = __int128;
using pll = pair<ll,ll>;
using vi = vector<int>;

#define fr first 
#define sc second

using ld = long double;

#define all(x) (x).begin(), (x).end()

const int maxn = 1e6+10, inf = 1e9+100;
const ll linf = 8e18+100;
const int mod = 998244353;



// #define cerr if(0) cerr


void solve () {
	int a,b;
	cin >> a >> b;
	int ans = 0;
	while(a<3){
		if(a==2||b==2)ans+=2;
		else ans++;
		a++;
	}
	cout << ans << "\n";
}


int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  cout<<fixed;
  cout.precision(20);
	// int tc;
	// cin >> tc;
	// while(tc--)
  solve();
}