5 5
180 60
  0  0     1  -1    
  0  1     2  6     
  0  2     3  -1   
  0  3     4  -1   
  0  4     9  -1   
           
  1  0     0  -1   
  1  1     5  -1   
  1  2     2  13   
  1  3     3  -1   
  1  4     14  8   

  2  0     5  11   
  2  1     7  -1   
  -1  -1     -1 -1 
  2  3     17  -1  
  2  4     13  19  

  3  0     10 16   
  3  1     -1 21   
  3  2     11 22   
  3  3     19  -1  
  3  4     24  -1  

  4  0     15 -1   
  4  1     20 -1   
  4  2     -1 21   
  4  3     18  22  
  4  4     23  -1