sorted = True
numbers = [3, 5, 4, 2]
numbersLength = len(numbers)

while sorted:
    sorted = False
    for number in range(len(numbers)):
        nextNumber = number + 1
        if nextNumber == numbersLength:
            break

        if numbers[number] > numbers[nextNumber]:
            currentNumberValue = numbers[number]
            numbers[number] = numbers[nextNumber]
            numbers[nextNumber] = currentNumberValue
            sorted = True

    if not sorted:
        break

print(numbers)