0 180

0 1800 1800 1800 180
0 1800 1800 1800 1800 1800 1800 1800 180
0 1800 1800 1800 1800 1800 1800 1800 1800 1800 1800 1800 180
0 1800 1800 1800 1800 1800 1800 1800 1800 1800 1800 1800 1800 1800 1800 1800 180
0 1800 1800 1800 1800 1800 1800 1800 180