valor = float(input())
if valor >= 0 and valor <= 25.00:
    print('Intervalo [0,25]')
elif valor > 25 and valor <= 50.00:
    print('Intervalo (25,50]')
elif valor > 50.00 and valor <= 75.00:
    print('Intervalo (50,75]')
elif valor > 75.00 and valor <= 100.00:
    print('Intervalo (75,100]')
else:
    print('Fora de intervalo')
