A 6 5 1 July 8, 2019 16 32 64 128 A 6 5 12 A 6 5 11 A 6 5 10 6 a 5 )= 105 A 5 6 15 6 a 5 14 A 5 6 1 3 6 a 5 )= 100 A 5 6 1 2 A 6 5 7 12 A 1 6 5 12 A 4 5 6 =- 1 2 A 3 5 6 1 2