n = int(input())
if n <= 6:
    base = "123123"
    print(base[:n])
else:
    s = list("123123")
    next_digits = [4,5,6,7,8,9,1,2,3]
    idx = 0
    while len(s) < n:
        s.append(str(next_digits[idx % len(next_digits)]))
        idx += 1
    print(''.join(s))