#include <stdio.h>
#define MOD 1000000007


typedef unsigned long long flandre;

long solve(int n){
	flandre result = 1;
	int i;

	for (i = 1; i <= n; i++) {
		result *= i;
		result %= MOD;
		result *= (2 * i - 1);
		result %= MOD;
	}
	return (long)result;
}

int main(void){
	int n;
	scanf("%d", &n);
	printf("%ld\n", solve(n));
	return 0;
}