package ll;

public class F {
	public static int factorial(int n){
		if(n==0)
			return 1;
		return n*factorial(n-1);
	}
}

package ll;

public class Factorial {	
	public static void main(String[] args) {
		int sum;
		sum=F.factorial(5);
		System.out.println(sum);	
	}

}