#include <iostream>

using namespace std;

int main()
{
    double n;
    cin >> n;

    if (0 <= n && n <= 25) cout << "Intervalo [0,25]";
    else if (25 < n && n <= 50) cout << "Intervalo (25,50]";
    else if (50 < n && n <= 75) cout << "Intervalo (50,75]";
    else if (75 < n && n <= 100) cout << "Intervalo (75,100]";
    else cout << "Fora de intervalo";

    return 0;
}