def all_same(s):
    return all(c == s[0] for c in s)

N = input().strip()

if all_same(N):
    print(N)
else:
    sum_d = sum(int(c) for c in N)
    g = 1

    if sum_d % 9 == 0:
        g *= 9
    elif sum_d % 3 == 0:
        g *= 3

    all_even = all(int(c) % 2 == 0 for c in N)
    if all_even:
        non_zero = [c for c in N if c != '0']
        if non_zero:
            all_div4 = all(int(c) % 4 == 0 for c in non_zero)
            if all_div4:
                digits_int = [int(c) for c in N]
                unique_a = set(digits_int)
                is_4_factor = True
                for a in unique_a:
                    required = (-2 * a) % 4
                    for b in digits_int:
                        if b % 4 != required:
                            is_4_factor = False
                            break
                    if not is_4_factor:
                        break
                if is_4_factor:
                    g *= 4
                else:
                    g *= 2
            else:
                g *= 2
        else:
            g *= 2

    if all(c in {'0', '5'} for c in N):
        g *= 5

    print(g)