#include <stdio.h>

static int
factorial (int n)
{
 return (n < 2) ? 1 : n * factorial (n - 1);
}

int
main (void)
{
 int n;
 while (scanf ("%d", &n) == 1) {
 printf ("%d\n", factorial (n));
 }
 return 0;
}


2015-11-09 • Просмотров [ 128 ]