1000000050 53519b5a5e8cf12a4f81f82e489f95c1d04d5314 R06
R06   |       |                      | R 53519b5a5e8cf12a4f81f82e489f95c1d04d5314 | 1000000050
      | R---C | A/B/c                | C fa08654474ae2ddc4f61ee3a43d017ba65a439c3 | 0
      | R-D   | A/B/C                | D c9cabe7f49012e3fdef6ac6b929efb5654f583cf | -40   <===\
      |   D-C | + a                  | C 20329687bb9c1231a7e05afe86160343ad49b494 | -50        |-- note these!
      |   D-C | + b                  | C 50e9cdb03f9719261dd39d7f2920b906db3711a3 | -45   <===/