 A     B     C     L     L1     t1    t2    t3   MD
(8     6.5  5      12    5.5    3      1.5  2    2)
(10   8     7      12    4.5    4      2     2   3)
(12   10   8      12    5      4.5    2.5  2    3)
(16   13   11    20    10    5.5    3     2    4)
(20   17   15    20    10    5.5    3     2    6)