max_first_num = int(input())
max_second_num = int(input())
max_third_num = int(input())
start_num = 1
start_num_for_second = 2
my_pin = ''
first_num = 0
second_num = 0
third_num = 0

for first_num in range(1, max_first_num + 1):
    if first_num % 2 == 0:
        for second_num in range(2, max_second_num + 1):
            is_prime = True

            for i in range(2, second_num + 1):
                if second_num % i == 0 and second_num != i:
                    is_prime = False

            if is_prime:
                for third_num in range(1, max_third_num + 1):
                    if third_num % 2 == 0:
                        print(f'{first_num} {second_num} {third_num}')