gg

upper_first = int(input())
upper_second = int(input())
upper_third = int(input())

for first in range(1, upper_first + 1):
    if first % 2 == 0:
        for second in range(2, upper_second + 1):
            second_number_is_prime = True
            for each_number in range(2, second):
                if second % each_number == 0:
                    second_number_is_prime = False
                    break
            if second_number_is_prime:
                for third in range(1, upper_third + 1):
                    if third % 2 == 0:
                        print(f'{first}{second}{third}')