def modulus_three(n):
    r = n % 3
    if r == 0:
        print("Multiple of 3")
    elif r == 1:
        print("Remainder: 1")
    else:
        assert r == 2, "Remainder is not 2"
        print("Remainder: 2")

def modulus_three(n):
    r = n % 3
    if r == 0:
        print("Multiple of 3")
    elif r == 1:
        print("Remainder: 1")
    else:
        assert r == 2, "Remainder is not 2"
        print("Remainder: 2")
