#include <bits/stdc++.h>
#include <atcoder/all>	
using namespace std;
using namespace atcoder;

int main(){
	
	int a, b, c;
	cin >> a >> b >> c;
	
	int res1 = 0, res2 = 0;
	res1 = a * b * 2 + b * c * 2 + a * c * 2;
	res2 =  a * b * c;

	if(res1 > res2) cout << 2 << endl;
	else cout << 3 << endl;	

}