bbb bbd bbg bbs bbt bdb bdd bdg bds bdt bgb bgd bgg bgs bgt bsb bsd bsg bss bst btb btd btg bts btt dbb dbd dbg dbs dbt ddb ddd ddg dds ddt dgd dgg dgs dgt dsb dsd dsg dss dst dtb dtd dtg dts dtt g-d gbd gbg gbs gbt gdb gdd gds gdt ggb ggd ggg ggs ggt gsb gsd gsg gss gst gtb gtd gtg gts gtt sbb sbd sbg sbs sbt sdb sdd sdg sds sdt sgb sgd sgg sgs sgt ss- ssb ssd ssg sss sst stb std stg sts stt tbb tbd tbg tbs tbt tdb tdd tdg tds tdt tgb tgg tgs tgt tsb tsd tsg tss tst ttb ttd ttg tts ttt