C 8 4 2 July 8, 2019 16 32 64 128 C&o 4 8 2 C 8 c 4 2c 2 1 C 8 h 10 n 4 o 2 C 4 h 8 o 2 C 4 8 21 C 4 8 20 paper version C (- 8 4 contains (- 4 2 8 4 c 3 2c 1 2 c 8 4 2 c 4 )+ 8 10 2c 8 c 4 4 8 28 c Bachmann c&o 4 8 2