#include <iostream>
using namespace std;
int main()
{
    float a;
    cin >> a;
    if(a < 0 || a > 100)
    cout << "Fora de intervalo";
    else if (a >= 0 && a <= 25)
    cout << "Intervalo [0,25]";
    else if ( a > 25 && a <= 50)
    cout << "Intervalo (25,50]";
    else if ( a > 50 && a <= 75)
    cout << "Intervalo (50,75]";
    else
    cout << "Intervalo (75,100]";
    return 0;
}