def is_divisible_by_3(x):
    if x % 3 == 0:
        print x,"is divisible by 3."
    else:
        print "This number is not divisible by 3."
    
def is_divisible_by_5(y):
    if y%5==0:
        print y,"is divisible by 5."
    else:
        print y,"is not divisble by 5."
        
