C 7 8 9 July 8, 2019 16 32 64 128 C (- 7 (- 8 (- 90 A b c 7 8 9 C 6 7 8 9 7 c 8 )+ 9 8 7c 13 7 8 c 9 3 4 7 c 2d 8 )+ 3 9c 2 H 8 7 c )+ 9 2 4 D&c 9 7 8 7 8 dari 90 c/o 7 - 9 ะก 8=9
