#include<stdio.h> 

unsigned int factorial(unsigned int n) 
{ 
	if (n == 0) 
	return 1; 
	return n * factorial(n - 1); 
} 

int main() 
{ 
	int num;
	printf("Enter the Number\n");
	scanf("%d",&num); 
	printf("Factorial of %d is %d \n", num, factorial(num)); 
	return 0; 
}