#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <utility>
#include <map>
#include <set>
#include <queue>
#include <iomanip>
#include <cmath>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
typedef long long ll;
#define rep(i,n) for (int i = 0; i < int(n);i++)

int main(){
	int a,b,c;
	cin >> a >> b >> c;
	if (2*(a*b+b*c+c*a) > a*b*c){
		cout << 2 << endl;
	}
	else{
		cout << 3 << endl;
	}
	
	return 0;
}