#include<bits/stdc++.h>
#define rep(i, n) for (int i=0;i<n;++i)
using namespace std;
using ll = long long;
int main() {
	ll a,b,c; cin>>a>>b>>c;
	if ((a*b+b*c+c*a)*2>a*b*c) puts("2");
	else puts("3");
}