#include <stdio.h>

/*
 * 階乗n!
 */
int main(void) {
	int i,n,fact;
	
	scanf("%d", &n);
	fact=n;
	printf("%d! = %d",n,n);
	for(i=n-1; i>0; i--){
		printf(" x %d",i);
		fact *= i;
	}
	printf("\n   = %d\n",fact);

	return 0;
}