3 4b 2 3b July 8, 2019 16 32 64 128 4b 3 3b 2 16b 12 3 4b − 2 3b − 9 3b 3 4b 2 5b 3c 3 2b-4 3b-3 2b 3 4⋅b⋅2 3
