Untitled

numbers = []
x = None

def one(x):
    while x != 0:
        x = int(input("Number: "))
        if x != 0:
            numbers.append(x)

    # https://stackoverflow.com/questions/57025836/how-to-check-if-a-given-number-is-a-power-of-two
    # https://stackoverflow.com/questions/600293/how-to-check-if-a-number-is-a-power-of-2
    pows = [i for i in numbers if (i & (i - 1)) == 0]

    if len(pows):
        ans = sum(pows)/len(pows)
        print(ans)
    else:
        print("нет")

def two(x):
    while x != 0:
        x = int(input("Number: "))
        if x != 0:
            numbers.append(x)

    pows = [i for i in numbers if (9 < i < 100) and (i % 5 == 0)]

    if len(pows):
        ans = sum(pows)/len(pows)
        print(ans)
    else:
        print("нет")

def three(x):
    while x != 0:
        x = int(input("Number: "))
        if x != 0:
            numbers.append(x)

    pows = [i for i in numbers if (i % 10 == 1) and (i % 3 == 0)]

    if len(pows):
        ans = sum(pows)/len(pows)
        print(ans)
    else:
        print("нет")

# one(x)
# two(x)
three(x)