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++14 (GCC 5.4.1) (judge verdict: Wrong Answer)

#include <bits/stdc++.h>
using namespace std;
 
int main(){
  int x1,y1,x2,y2,x3,y3,x4,y4;
  cin>>x1,y1,x2,y2;
  int dis=abs(x1-x2)+abs(y1-y2);
  if(x1==x2){
    if(y2>y1){
      x3=x1+dis;
      x3=x4;
      y3=y2;
      y4=y1;
    }
     if(y1>y2){
      x3=x1-dis;
       x3=x4;
      
      y3=y2;
      y4=y1;
    }
  }
  if(y1==y2){
    if(x1>x2){
      y3=y1+dis;
      y3=y4;
      x3=x2;
      x4=x1;
    }
     if(x2>x1){
      y3=y1-dis;
      y3=y4;
      x3=x2;
      x4=x1;
    }
  }
  cout<<x3<<y3<<x4<<y4<<endl;
}