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