import java.util.Scanner;
import java.util.stream.IntStream;

public class Main{
	static IntStream REPS(int v){return IntStream.range(0,v);}
	static IntStream REPS(int l,int r){return IntStream.rangeClosed(l,r);}
	static IntStream INS(int n) {return REPS(n).map(i->getInt());}
	static Scanner s=new Scanner(System.in);
	static int getInt(){return Integer.parseInt(s.next());}
	public static void main(String[]$){
		int n=getInt(),mod=1000000007;
		long sum[]={0,1};
		for(int i=1;i<=n;++i) {
			long v=(sum[(i+1)%2]*i)%mod;
			sum[i%2]=(sum[i%2]+v)%mod;
			if(i==n)System.out.println(v);
		}
	}
}