#include<bits/stdc++.h>
using namespace std;
using ll=long long;

int main(){
  ll a,b,c;
  cin>>a>>b>>c;
  ll s=2*(a*b+b*c+c*a);
  ll v=a*b*c;
  if(s>v){
    cout<<2<<endl;
  }else{
    cout<<3<<endl;
  }
}