#include <iostream> using namespace std; int main() { int a, b, c; cin >> a >> b >> c; if(a > 0 && b > 0 && c > 0) cout << "3" << endl; else if ((a > 0 && b > 0 && c < 0) or (a > 0 && b < 0 && c > 0) or (a < 0 && b > 0 && c > 0)) cout << "2" << endl; else if ((a > 0 && b < 0 && c < 0) or (a < 0 && b < 0 && c > 0) or (a < 0 && b > 0 && c < 0)) cout << "1" << endl; else cout << "0"; return 0; }