#include <bits/stdc++.h>
using namespace std;
int main () {
    int a,b,c;
    cin >> a >> b >> c;
    int mennseki = a*b*2+b*c*2+c*a+2;
    int taiseki = a*b*c;
    if(mennseki>taiseki) {
        cout << "2" << endl;
    }
    else cout << "3" << endl;
}