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

using ll = long long;
const ll INF = (1LL << 60);

int main() {
    int A, B, C;
    cin >> A >> B >> C;
    int X((A*B + B*C + A *C) * 2), Y(A * B * C);
    if(Y < X) cout << 2 << endl;
    else cout << 3 << endl;
    return 0;
}