       0    0    0    0    0    0    2    2    2    2    2
      10    0    0    0    0    0    4    4    4    4    4
      20    0    0    0    0    0    4    4    4    4    4
      30    1    1    1    1    1    4    4    4    4    4
      40    3    3    3    3    3    3    3    3    3    3
      60    3    3    3    3    3    3    3    3    3    3
