k1 = sm k2 = rm k3 = km k4 = dm k5 = anm k6 = bnm k7 = acm k8 = bcm k9 = acnm k10 = amm k11 = bmm k12 = arm k13 = brm k14 = rc k15 = kc k16 = dc k17 = amc k18 = bmc k19 = anc k20 = bnc k21 = sn k22 = rn k23 = kn k24 = dn k25 = acn k26 = bcn k27 = rr k28 = kr k29 = dr k30 = amr k31 = bmr k32 = compartment