#include <cstdio>
#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<=50) cout << "Intervalo (25,50] " ;
    else if(a<=75) cout << "Intervalo (50,75] " ;
    else if(a<=100) cout << "Intervalo (75,100] " ;

    return 0;
}