N = input()
l = list(map(int,list(N)))
dat = [0] * 10
s = set()
for i in l:
    s.add(i)

import sys
if len(s) == 1:
    print(N)
    exit()
def gcd(a,b):
    if b == 0:return a
    while True:
        r = a % b
        a = b
        b = r
        if r == 0:return a
d = 0
for i in range(10):
    for j in range(i+1,10):
        if i in s and j in s:
            d = gcd(d,j-i)
d *= 9
n = 0
for i in l:
    n = (n * 10 + i) % d
print(gcd(n,d))