def recurs(value):
    value = str(value)
    lst = list(map(lambda x: x[::1], value))
    res = sum([int(i) for i in lst])
    while not res % 10 == res:
        res = str(res)
        lst = list(map(lambda x: x[::1], res))
        res = sum([int(i) for i in lst])
    return res


print(recurs(132189))
print(recurs(493193))