Source

This problem is adapted from Long Long OJ. All rights reserved.

Problem Description

Given two distinct lattice points $A(x_1,y_1), B(x_2,y_2)$, find a lattice point $C(x_3,y_3)$ such that $\triangle ABC$ is a right triangle.

Input Format

A single line containing four integers $x_1,y_1,x_2,y_2\ (-10^{18}\le x_3,y_3\le10^{18})$.

Output Format

The coordinates $(x_3,y_3)\ (-10^{18}\le x_3,y_3\le10^{18})$ of a point $C$ that satisfies the conditions.

Samples

0 0 2 4

3 1

Sample Explanation

In the sample, $AC=\sqrt{10}, BC=\sqrt{10}, AB=2\sqrt{5}$.

Since $AC^2+BC^2=AB^2$, $\triangle ABC$ is a right triangle with $\angle C=90^\circ$.

Note that the coordinates of point $C$ are not unique.