package com.company;

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {

        double start = -10;
        double end = 10;
        double by = 0.5;

        Scanner keyboard = new Scanner(System.in);
        System.out.println("x        y");
        System.out.println("-----------------------");
        double count=0;

        for (double n = start; n <= end; n = n + by) {
            System.out.println(n + "\t  "+ n*n);
        }
    }
}