non_negative_3_5

multNum = int(input('Please enter a non negative integer: '))
while multNum < 0:
    multNum = int(input('Please enter a non negative integer: '))

if (multNum%3 == 0) or (multNum%5 ==0):
    if not ((multNum%3 == 0) and (multNum%5 == 0)):
        print("True")