import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.PriorityQueue;
import java.util.Scanner;

public class Main {
	
	public static final long MOD = 1000000007l;
	
	public static long mod_pow(long a, long e, long m){
		long ret = 1;
		for(; e > 0; e /= 2){
			if (e % 2 != 0) ret = (ret * a) % m;
			a = (a * a) % m;
		}
		return ret;
	}
	
	public static long mod_inv(long a, long p){
		return mod_pow(a, p - 2, p);
	}
	
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		
		final long N = sc.nextLong();
		
		if(N >= MOD){
			System.out.println(0);
			return;
		}
		
		if(N < MOD / 2){
			long answer = 1;
			for(int i = 2; i <= N; i++){
				answer *= i;
				answer %= MOD;
			}
			
			System.out.println(answer);
		}else{
			long answer = MOD - 1;
			
			for(long i = MOD - 1; i > N; i--){
				answer *= mod_inv(i, MOD);
				answer %= MOD;
			}
			
			System.out.println(answer);
		}
		
	}
}