n = int(input())
m = (n + 1) // 2
second_part_length = n - m

first_part = ''.join(str(i % 9 + 1) for i in range(m))
second_part = ''.join(str(i % 9 + 1) for i in range(second_part_length))

result = first_part + second_part
print(result)