-ic b-u bbb bbc bbg bbi bbn bbr bbs bbt bbu bcb bcc bcg bci bcn bcr bcs bct bcu bgb bgc bgg bgi bgn bgr bgs bgt bgu bi- bib bic big bii bin bir bis bit biu bnb bnc bng bni bnn bnr bns bnt bnu brb brg bri brn brr brs brt bru bsb bsc bsg bsi bsn bsr bss bst bsu btb btc btg bti btn btr bts btt btu bub buc bug bui bun bur bus but buu c-- cbb cbc cbg cbi cbn cbr cbs cbt cbu ccb ccc ccg cci ccn ccr ccs cct ccu cgb cgc cgg cgi cgn cgr cgs cgt cgu ci- cib cic cig cii cin cir cis cit ciu cn- cnb cnc cng cni cnn cnr cns cnt cnu crb crc crg cri crn crr crs crt cru csb csc csg csi csn csr css cst csu ctb ctc ctg cti ctn ctr cts ctt ctu cub cuc cug cui cun cur cus cut cuu gbc gbg gbi gbn gbr gbs gbt gbu gcb gcc gcg gci gcn gcr gcs gct gcu ggb ggc ggg ggi ggn ggr ggs ggt ggu gib gic gig gii gin gir gis git giu gnb gnc gni gnn gnr gns gnt gnu grb grc grg gri grn grr grs grt gru gsb gsc gsg gsi gsn gsr gss gst gsu gtb gtc gtg gti gtn gtr gts gtt gtu gu- gub guc gug gui gun gur gus gut guu ibb ibc ibg ibi ibn ibr ibs ibt ibu icb icc icg ici icn icr ics ict icu igb igc igg igi ign igr igs igt igu iib iic iii iin iir iis iit iiu in- inb inc ing ini inn inr ins int inu ir- irb irc irg iri irn irr irs irt iru is- isb isc isg isi isn isr iss ist isu itb itc itg iti itn its itt itu iu- iub iuc iug iui iur ius iut n-i nbb nbc nbg nbi nbn nbr nbs nbt nbu ncb ncc ncg nci ncn ncr ncs nct ncu ngb ngc ngg ngi ngn ngs ngt ngu nib nic nig nii nin nir nis nit niu nnb nnc nng nni nnn nns nnt nnu nrb nrc nrg nri nrn nrr nrs nrt nru nsb nsc nsg nsi nsn nsr nss nst nsu ntb ntc ntg nti ntn ntr nts ntt ntu nub nuc nug nui nun nur nus nut nuu rbb rbc rbg rbi rbn rbr rbs rbt rbu rcb rcc rcg rci rcn rcr rcs rct rcu rgb rgc rgg rgi rgn rgr rgs rgt rib ric rig rii rin rir ris rit rnb rnc rng rni rnn rnr rns rnt rnu rrb rrc rrg rri rrn rrr rrs rrt rru rsb rsc rsg rsi rsn rsr rss rst rsu rtb rtc rtg rti rtn rtr rts rtt rtu rub ruc rug rui run rur rus rut ruu sbb sbc sbg sbi sbn sbr sbs sbt sbu scb scc scg sci scn scr scs sct scu sgb sgc sgg sgi sgn sgr sgs sgt sgu sib sic sig sii sin sir sis sit siu snb snc sng sni snn snr sns snt snu sr- srb src srg sri srn srr srs srt ss- ssb ssc ssg ssi ssn ssr sss sst ssu stb stc stg sti stn str sts stt stu sub suc sug sui sun sur sus sut suu tbb tbc tbg tbi tbn tbr tbs tbt tbu tcb tcc tcg tci tcn tcr tcs tct tcu tgb tgc tgg tgi tgn tgr tgs tgt tgu tib tic tig tii tin tir tis tit tiu tnb tnc tng tni tnn tnr tns tnt trb trc trg tri trn trr trs trt tru tsb tsc tsg tsi tsn tsr tss tst tsu ttb ttc ttg tti ttn ttr tts ttt ttu tub tuc tug tui tun tur tus tut tuu ubb ubc ubg ubi ubn ubr ubs ubt ubu ucb ucc ucg uci ucn ucr ucs uct ucu ugb ugc ugg ugi ugn ugr ugs ugt ugu uib uic uig uii uin uir uis uit uiu un- unb unc ung uni unn unr uns unt unu ur- urb urc urg uri urn urr urs urt uru usb usc usg usi usn usr uss ust usu utb utc uti utn utr uts utt utu uuc uug uun uur uus uut uuu

-ing bbbb bbbs bbci bbin bbng bbrc bbrg bcbc bcbg bcbs bccc bcci bccs bcgs bcis bcit bcnu bcrs bcru bcsc bcsn bcss bctc bcts bcuc bggs bgst bgun bibb bibi bibs bicc bicg bici bics bigb bigc bigg bign bigs bigt bigu biin biis bin- binc bing bini binn bins bint binu birb birg biri birn birr birs birt biru bis- bisc biss bist bisu bitc bits bitt bitu bnib bnin bnrr bnss brcb bric brig brin bris brit brns brrr brrs brsb brsr brst brtc bruc brug brun brus brut bsci bscs bsgs bsic bsin bsns bssc bsts btcc btcs btrc btrt btss bttb btus bubb bubi bubs bubu bucc buci bucs bucu bugg bugi bugs buic buin buir buis buit buiu bunb bung buni bunn buns bunt bunu bur- burb burg buri burn burr burs burt buru busc busi buss bust busu but- buti buts butt buus cbbc cbbs cbcc cbcn cbcr cbcs cbct cbcu cbgb cbir cbit cbrn cbrt cbsc cbsi cbsn cbtc cbus ccbc ccbn cccb cccc ccci cccs cccu ccgc ccgs ccgt ccic ccii ccir ccis ccnb ccnc ccni ccnr ccns ccnu ccrc ccrg ccri ccrs ccrt ccsg ccsi ccsn ccss ccst cctb cctc cctt ccuc ccus ccut cgcc cgcg cggs cgis cgns cgsb cgss cgst cgtu cibc cibi cicc cici cicr cics cict cicu cigi cigs cigu ciii ciis ciit cin- cinc cing cini cint cirb circ ciri cirr cirs cirt cis- cisc cisn cisr ciss cist citb citg citi cits citt citu ciuc cius cnbc cnci cngi cnib cnic cnrc cnrr cnrt cnss cntc cntr cnut crbc crbu crcc crcr crgs crib cric