# You must make a program that read a float-point number
# and print a message saying in which of following intervals the number belongs:
# [0,25] (25,50], (50,75], (75,100].
# If the read number is less than zero or greather than 100,
# the program must print the message "Fora de intervalo" that means "Out of Interval".
# The symbol '(' represents greather than. For example:
# [0,25] indicates numbers between 0 and 25.0000, including both.
# (25,50] indicates numbers greather than 25 (25.00001) up to 50.0000000


A = float(input())
if A < 0 or A > 100:
    print "Fora de intervalo"
elif A >= 0 and A <= 25:
    print "Intervalo [0,25]"
elif A > 25 and A <= 50:
    print "Intervalo (25,50]"
elif A > 50 and A <= 75:
    print "Intervalo (50,75]"
elif A > 75 and A <= 100:
    print "Intervalo (75,100]"
