import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Scanner;


public class Solution {

	public static CPoint[] closestk(CPoint[] mylist,int k){
		
		return mylist;
		}
	
	public static void main(String[] args){
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		Scanner sc= new Scanner(System.in);
		System.out.println(Math.pow(-2, 2));
	}
}