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