#include using namespace std; #define REP(i,a,n) for(int i=(a); i<(int)(n); i++) #define rep(i,n) REP(i,0,n) #define FOR(it,c) for(__typeof((c).begin()) it=(c).begin(); it!=(c).end(); ++it) #define ALLOF(c) (c).begin(), (c).end() typedef long long ll; typedef unsigned long long ull; static const ll mod = 1000000007; int main(){ int N; cin >> N; if(N == 1){ cout << 1 << endl; }else{ ll an = 1; ll odd = 1; ll even = 0; REP(i,2,N+1){ if(i%2==0){ an = (i * (ll)odd) % mod; even += an; even %= mod; }else{ an = (i * (ll)even) % mod; odd += an; odd %= mod; } } cout << an << endl; } return 0; }