n = input()
if len(set(n)) == 1:
    print(n)
    exit()
tot = sum(map(int, n))
if tot % 9 == 0:
    ans = 9
elif tot % 3 == 0:
    ans = 3
else:
    ans = 1
if all(int(x) % 4 == 0 for x in n):
    ans *= 4
elif all(int(x) % 2 == 0 for x in n):
    ans *= 2
if all(int(x) % 5 == 0 for x in n):
    ans *= 5
if len(set(n)) == 2 and "0" in n:
    for s in n:
        if s != "0":
            ans *= [0, 1, 1, 1, 1, 1, 1, 7, 2, 0][int(s)]
            break
print(ans)