8. 팩토리얼

package _8;

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		
		Scanner sc = new Scanner(System.in);
		int num = sc.nextInt();
		int result = 1;
		
		for (int i = num; i >= 1 ; i--) {
			result *= i;
		}
		System.out.println("팩토리얼 : " + result);
	}
	
}