Some days ago, I learned the concept of LCM (least common multiple). I've played with it for several times and I want to make a big number with it.

But I also don't want to use many numbers, so I'll choose three positive integers (they don't have to be distinct) which are not greater than *n*. Can you help me to find the maximum possible least common multiple of these three integers?
The first line contains an integer *n* (1 ≤ *n* ≤ 10<sup class="upper-index">6</sup>) — the *n* mentioned in the statement.
from math import lcm
n = int(input())
if n < 3:
    print(n)
else:
    M = 0
    for a in range(n - 10, n + 1):
        for b in range(n - 10, n + 1):
            if b == a:
                continue
            for c in range(n - 10, n + 1):
                if c == a or c == b or c < 1 or b < 1 or c < 1:
                    continue
                M = max(M, lcm(a, b, c))
    print(M)
