2 13 16 x 3 July 8, 2019 16 32 64 128 80 13 16 x 2 3 2 11 16 x 3 13 16 1 2 3x 10 )=- 13 x 16 8 x 3 2 )) 16 13 2 x 13 2 x 3/16