  ,   N   M .       0,  1.
   (x1,y1)  (x2,y2)  |x1-x2|+|y1-y2|.     ,
           ,  1 (  ).
,     1   .

 
        ,   100 - N  M.
  N   M  -  .

 
    N   M  -   .


2 3
0 0 1
1 0 0


1 1 0
0 1 1
