numbers = [int(n) for n in input().split(", ")]
check_numbers = list()

for number in range(1, 10 + 1):
    check_numbers.clear()
    if len(numbers) != 0:
        for num in numbers:
            if int(num) <= number * 10:
                check_numbers.append(num)
        for d in check_numbers:
            numbers.remove(d)

        print(f"Group of {number * 10}'s: {check_numbers}")