import sys
from typing import List, Tuple


def int1(x: str, /): return int(x) - 1


def input(): return sys.stdin.readline().rstrip('\n')


def main():
    M = 10 ** 9 + 7
    a = [0, 1, 2]
    s = [0, 1, 2]
    n = int(input())
    for i in range(3, n + 1):
        a.append(s[-1] * i % M)
        s.append((s[-2] + a[-1]) % M)
    return a[n]


def _start():
    ret = main()

    if ret is not None:
        if isinstance(ret, List) or isinstance(ret, Tuple):
            print(*ret)
        else:
            print(ret)


if __name__ == '__main__':
    _start()