C 4 5 2 July 8, 2019 16 32 64 128 4 5 c 2 3 C 3 c 4 2c 5 C (- 5 4 b (- 2 5 2c 5 c 4 1×2= 3/4 5 с 4 c 5 )- 2c 12 4 c 5 )- 2c 14 4 c 5 )= 20 C 2 4 5 29 speckled 3 c 5 4 2c 6 16c 4 c 5 )= 220 1 4 c 5 20 3c c 4 2 5 24 c 4 5