A 1 b 2 c 3 d 0 July 8, 2019 16 32 64 128 A 4 b 3 c 2 d 1 f 0 0.9999 a 1 b 2 c 3 d 4 A 0 b 1 c 2 d 3 e 4 A 2 0 b 3 2 c 6 3 d 5 1 A 1 2 3 4 5 6 (a+b+c) 3