N=10;
M=10;
height=[|1004,1004,1004,1004,1009,1009,1009,1009,1009,1009|
904,904,904,904,904,904,904,904,904,904|
800,800,800,800,800,800,800,800,800,800|
703,703,703,703,703,703,703,703,703,703|
601,601,601,601,601,601,601,601,601,601|
503,503,503,500,500,500,500,500,500,500|
407,407,407,407,407,407,407,407,407,407|
306,306,306,306,306,306,306,306,306,306|
203,203,203,203,203,203,203,203,203,203|
101,106,102,102,101,106,106,106,106,104|];