#include<iostream>
using namespace std;
int main(){
    double a;
    scanf("%lf",&a);
    if(a>=0 && a<=25) printf("Intervalo [0,25]");
        else if(a>25 && a<=50) printf("Intervalo (25,50]");
            else if(a>50 && a<=75) printf("Intervalo (50,75]");
                else if (a>75 && a <=100) printf("Intervalo (75,100]");
                    else printf("Fora de intervalo");
                    return 0;

}