n = int(input())



numbers_lst = []
for _ in range(n):
    number = int(input())
    numbers_lst.append(number)



merge_nums = ''
for i in range(len(numbers_lst)-1):
        my_num = numbers_lst[i] % 10
        merge_nums += str(my_num)
        my_num = numbers_lst[i+1] // 10
        merge_nums += str(my_num)
        merge_nums += ' '

print(merge_nums)

# 42 squashed with 17 produces 437
squashed_nums = ''
for i in range(len(numbers_lst)-1):
        my_num = numbers_lst[i] // 10
        squashed_nums += str(my_num)
        my_num = (numbers_lst[i] % 10 + numbers_lst[i+1] // 10) % 10
        squashed_nums += str(my_num)
        my_num = numbers_lst[i+1] % 10
        squashed_nums += str(my_num)
        squashed_nums += ' '


print(squashed_nums)