1037

n = float(input())
if 0 <= n <= 25 :
    print("Intervalo [0,25]")
elif 25 < n <= 50 :
    print("Intervalo (25,50]")
elif 50 < n <= 75 :
    print("Intervalo (50,75]")
elif 75 < n <= 100 :
    print("Intervalo (75,100]")
else :
    print("Fora de intervalo")