#include <stdio.h>
#include <math.h>
#include <stdlib.h>

int main(void){
	unsigned long long n;
	scanf("%llu",&n);
	if(n>=1000000007){
		printf("0\n");
		return 0;
	}
	unsigned long long a[100000];
	a[0]=1;a[1]=1;
	int m=1;
	int i=2,j=2,kai=1;
	while(i<=n){
		if(j!=0){
			a[j]=(a[j-1]*i)%1000000007;
		}else{
			a[j]=(a[99999]*i)%1000000007;
		}
		i++;
		j++;
		if(j==100000){
			j=0;
		}
	}
	printf("%llu\n",a[j-1]);
	return 0;
}