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 JavaScript (node.js v5.12) (judge verdict: Accepted)

'use strict';

const main = (input) => {
    const nums = input.split(' ');
    const x1 = parseInt(nums[0], 10);
    const y1 = parseInt(nums[1], 10);
    const x2 = parseInt(nums[2], 10);
    const y2 = parseInt(nums[3], 10);
    const xdiff = x2 - x1;
    const ydiff = y2 - y1;
    const x3 = x2 - ydiff;
    const y3 = y2 + xdiff;
    const x4 = x3 - xdiff;
    const y4 = y3 - ydiff;
    console.log(x3 + ' ' + y3 + ' ' + x4 + ' ' + y4);
};

const isTest = false;

if (isTest) {
    main('0 0 0 1');
    main('2 3 6 6');
    main('31 -41 -59 26');
} else {
    main(require('fs').readFileSync('/dev/stdin', 'utf8'));
}