#     R2   :5,7,7,7,7,20,15
#     cR2  :4,4,4,4,4,16,14,16
#     R3t  :5,7,4,7,4,7,4,7,4,20,15
#     cR3t :5,7,4,7,4,7,4,7,4,20,15,15
