def sixBySeven(num):
    """assumes num is an integer
    returns a string
    if num is divisible by 42, returns "universe"
    elif num is divisible by 6, returns "food"
    elif num is divisible by 7, returns "good"
    else returns "oops"
    """
    if num % 42 == 0:
        return "universe"
    elif num % 6 == 0:
        return "food"
    elif num % 7 == 0:
        return "good"
    else:
        return "oops"