/*This program calculates the factorial of a given number
only tested for 1<x<17
Written by Sadi Evren SEKER */

#include <stdio.h>

main()

{

/*-----Decleration,initialization-----*/

	int i;
	long x;
	x=1;

/*-----Body-----------*/

/*------interface--------*/

	printf("\n\n\nPlease enter a value to calculate the factorial of it\n");
	printf("\n--->");
	scanf("%d",&i);

/*-----loop for factorial------*/

	for(i=i;i>0;i--)
	{
		x=i*x;
	}
	printf("\nThe factorial value is ---> %d\n\n\n",x);
}