#include<bits/stdc++.h>
using namespace std;
int main()
{
    double a;
    cin >> a ;
    if(a < 0 || a > 100) cout << "Fora de intervalo" << endl;
    else if( a >=0 && a <=25 )cout << "Intervalo [0,25]" << endl;
    else if( a >25 && a <=50 )cout << "Intervalo (25,50]" << endl;
    else if( a >50 && a <=75 )cout << "Intervalo (50,75]" << endl;
    else if( a >75 && a <=100)cout << "Intervalo (75,100]" << endl;
    return 0;
}