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 C# (Mono 4.6.2.0) (judge verdict: Wrong Answer)

using System;

namespace abc108B
{
    class MainClass
    {
        public static void Main(string[] args)
        {
            string[] str = Console.ReadLine().Split();
            int A = int.Parse(str[0]);
            int B = int.Parse(str[1]);
            int C = int.Parse(str[2]);
            int D = int.Parse(str[3]);
            int X, Y;
            int E = 0;
            int F = 0;
            int G, H;
            if (A > C && B > D)
            {
                X = A - B;
                Y = B - D;
                E = C + Y;
                F = D + X;
            }
            else if (A > C && B <= D)
            {
                X = A - C;
                Y = D - B;
                E = C - Y;
                F = D - X;
            }
            else if (A <= C && B > D)
            {
                X = C - A;
                Y = B - D;
                E = C + Y;
                F = D + X;
            }
            else if (A <= C && B <= D)
            {
                X = C - A;
                Y = D - B;
                E = C - Y;
                F = D + X;
            }
            G = (A + E) - C;
            H = (B + F) - D;
            Console.WriteLine(E + " " + F + " " + G + " " + H);
        }
    }
}