4x 2y 1 0

4x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 0
4x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 0
4x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 04x 2y 1 0