Given two lines, with equations ~y=Ax+B~, and ~y=Cx+D~, determine the point of intersection.

Constraints

~-100 \leq A,B,C,D \leq 100~

Input Specfication

The first line will contain space-separated integers ~A,B,C,D~.

Output Specification

If the point of intersection does not exist, output no POI. If there is more than one point of intersection, output multiple POIs. Otherwise, output the x-coordinate of the point of intersection, followed by the y-coordinate. It is guaranteed the coordinates are integers.

Sample Input

1 0 2 3

Sample Output

-3 -3