#include<cstdio>
#include<iostream>
using namespace std;
int main()
{
double a;
scanf("%lf",&a);
if(a>100||a<0) printf("Fora de intervalo");
else 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]");
return 0;
}