#include<bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
int main(){
    int A,B,C;cin >> A >> B >> C;
    int X = A*B*2+A*C*2+B*C*2;
    int Y = A*B*C;
    if(X>Y)cout << 2 << endl;
    else cout << 3 << endl;
    
}