#include <bits/stdc++.h>
const int INF=1<<30;
int main(){
    int a,b,c;
    std::cin >> a >> b >> c;
    long long surface=2*(a*b+b*c+c*a);
    long long volume=a*b*c;
    if(surface>volume)std::cout << 2 << '\n';
    else std::cout << 3 << '\n';
}