Problem:
Score : 200 points

Problem Statement

There is a square in the xy-plane. The coordinates of its four vertices are (x_1,y_1),(x_2,y_2),(x_3,y_3) and (x_4,y_4) in counter-clockwise order.
(Assume that the positive x-axis points right, and the positive y-axis points up.)

Takahashi remembers (x_1,y_1) and (x_2,y_2), but he has forgot (x_3,y_3) and (x_4,y_4).

Given x_1,x_2,y_1,y_2, restore x_3,y_3,x_4,y_4. It can be shown that x_3,y_3,x_4 and y_4 uniquely exist and have integer values.

Constraints

|x_1|,|y_1|,|x_2|,|y_2| \leq 100

(x_1,y_1) ≠ (x_2,y_2)

All values in input are integers.

Input

Input is given from Standard Input in the following format:

x_1 y_1 x_2 y_2

Output

Print x_3,y_3,x_4 and y_4 as integers, in this order.

Sample Input 1

0 0 0 1

Sample Output 1

-1 1 -1 0

(0,0),(0,1),(-1,1),(-1,0) is the four vertices of a square in counter-clockwise order.
Note that (x_3,y_3)=(1,1),(x_4,y_4)=(1,0) is not accepted, as the vertices are in clockwise order.

Sample Input 2

2 3 6 6

Sample Output 2

3 10 -1 7

Sample Input 3

31 -41 -59 26

Sample Output 3

-126 -64 -36 -131

Solution in Java8 (OpenJDK 1.8.0) (judge verdict: Accepted)

import java.util.*;

public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);

    int[][] array = new int[4][2];

    array[0][0] = sc.nextInt();
    array[0][1] = sc.nextInt();
    array[1][0] = sc.nextInt();
    array[1][1] = sc.nextInt();

    int[][] vec = new int[2][2];

    vec[0][0] = array[1][0] - array[0][0];
    vec[0][1] = array[1][1] - array[0][1];
    vec[1][0] = -vec[0][1];
    vec[1][1] = vec[0][0];

    array[2][0] = array[1][0] + vec[1][0];
    array[2][1] = array[1][1] + vec[1][1];
    array[3][0] = array[0][0] + vec[1][0];
    array[3][1] = array[0][1] + vec[1][1];


    String x_3 = String.valueOf(array[2][0]);
    String y_3 = String.valueOf(array[2][1]);
    String x_4 = String.valueOf(array[3][0]);
    String y_4 = String.valueOf(array[3][1]);

    System.out.println(x_3+" "+y_3+" "+x_4+" "+y_4);
  }
}