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

int main() {
	int a, b, c;
	cin >> a >> b >> c;
	int y = a * b * c;
	int x = a * b * 2 + a * c * 2 + b * c * 2;
	int ans = 3;
	if( x > y ) ans = 2;
	cout << ans << endl;
}