A 2 b 13 July 8, 2019 16 32 64 128 A 2 b 133 Iso 13363 2 a b A √ 2 b 5 c 135 A 2 b 2 135 A 2 b 2 c 2 1398 1324 a )( 2 )( b ii A 13 2 b 7 10
