A - 4b 2c = 16 July 8, 2019 16 32 64 128 A 4b 2c 16 A 4b 2c 16 2a 7b 5c 83 A 4b 2c 16 2a 7b 5c 23 a bc A 4b 2c 16 2a 7b 5c 83 a b c A - 4b + 2c
