MOD = 10 ** 9 + 7
n = int(input())
A = [0] * (n + 1)
B = [0] * (n + 1)
A[1] = 1
B[1] = 1
for i in range(2,n+1):
    A[i] = i * B[i-1]
    A[i] %= MOD
    B[i] = B[i-2] + A[i]
    B[i] %= MOD
print(A[n])