-ic b-u bbb bbc bbg bbi bbt bbu bcb bcc bcg bci bct bcu bgb bgc bgg bgi bgt bgu bi- bib bic big bii bit biu btb btc btg bti btt btu bub buc bug bui but buu c-- cbb cbc cbg cbi cbt cbu ccb ccc ccg cci cct ccu cgb cgc cgg cgi cgt cgu ci- cib cic cig cii cit ciu ctb ctc ctg cti ctt ctu cub cuc cug cui cut cuu gbc gbg gbi gbt gbu gcb gcc gcg gci gct gcu ggb ggc ggg ggi ggt ggu gib gic gig gii git giu gtb gtc gtg gti gtt gtu gu- gub guc gug gui gut guu ibb ibc ibg ibi ibt ibu icb icc icg ici ict icu igb igc igg igi igt igu iib iic iii iit iiu itb itc itg iti itt itu iu- iub iuc iug iui iut tbb tbc tbg tbi tbt tbu tcb tcc tcg tci tct tcu tgb tgc tgg tgi tgt tgu tib tic tig tii tit tiu ttb ttc ttg tti ttt ttu tub tuc tug tui tut tuu ubb ubc ubg ubi ubt ubu ucb ucc ucg uci uct ucu ugb ugc ugg ugi ugt ugu uib uic uig uii uit uiu utb utc uti utt utu uuc uug uut uuu