-ic b-u bbb bbc bbf bbi bbo bbr bbs bbt bbu bby bcb bcc bcf bci bco bcr bcs bct bcu bcy bfb bfc bff bfi bfo bfr bfs bft bfu bfy bi- bib bic bif bii bio bir bis bit biu biy bob boc bof boi boo bor bos bot bou boy brb brf bri bro brr brs brt bru bry bsb bsc bsf bsi bso bsr bss bst bsu bsy btb btc btf bti bto btr bts btt btu bty bub buc buf bui buo bur bus but buu buy by- byc byf byi byo byr bys byt byu c-- cbb cbc cbf cbi cbo cbr cbs cbt cbu cby ccb ccc ccf cci cco ccr ccs cct ccu cfb cfc cff cfi cfo cfr cfs cft cfu ci- cib cic cif cii cio cir cis cit ciu co- cob coc cof coi coo cor cos cot cou coy crb crc crf cri cro crr crs crt cru cry csb csc csf csi cso csr css cst csu csy ctb ctc ctf cti cto ctr cts ctt ctu cty cub cuc cuf cui cuo cur cus cut cuu cuy cyb cyc cyf cyo cyr cys cyt fbb fbc fbf fbi fbo fbr fbs fbt fbu fcb fcc fcf fci fco fcr fcs fct fcu fcy ffc fff ffi ffo ffr ffs fft ffu ffy fib fic fif fii fir fis fit fiu fob foc fof foi foo for fos fot fou foy frb frc frf fri fro frr frs frt fru fry fsb fsc fsf fsi fso fsr fss fst fsu ftb ftc ftf fti fto ftr fts ftt ftu fty fub fuf fui fuo fur fus fut fuu fy- fyb fyc fyi fyo i-f ibb ibc ibf ibi ibo ibr ibs ibt ibu iby icb icc icf ici ico icr ics ict icu icy ifb ifc iff ifi ifo ifr ifs ift ifu ify iib iic iif iii iio iir iis iit iiu io- iob ioc iof ioi ioo ior ios iot iou ir- irb irc irf iri iro irr irs irt iru iry is- isb isc isf isi iso isr iss ist isu isy itb itc itf iti ito its itt itu ity iu- iub iuc iui iur ius iut iyc iyo iyr iys iyt iyy o-i ob- obb obc obf obi obo obr obs obt obu oby oc- ocb occ ocf oci oco ocr ocs oct ocu of- ofb ofc off ofi ofo ofr ofs oft ofu oib oic oif oii oio oir ois oit oiu oo- oob ooc oof ooi ooo oor oos oot or- orb orc orf ori oro orr ors ort oru ory os- osb osc osf osi oso osr oss ost osu ot- otb otc otf oti oto otr ots ott otu ou- ouc ouf oui ouo our ous out oyi oyo oys rbb rbc rbf rbi rbo rbr rbs rbt rbu rcb rcc rcf rci rco rcr rcs rct rcu rfb rfc rff rfi rfo rfr rfs rft rfu rib ric rif rii rio rir ris rit riy rob roc rof roi roo ror ros rot rou roy rrb rrc rrf rri rrr rrs rrt rru rsb rsc rsf rsi rso rsr rss rst rsu rtb rtc rtf rti rto rtr rts rtt rtu rty rub ruc ruf rui ruo rur rus rut ruu ruy ry- ryc ryf ryo ryr rys ryu ryy sbb sbc sbf sbi sbo sbr sbs sbt sbu sby scb scc scf sci sco scr scs sct scu sfb sfc sff sfi sfo sfr sfs sft sfu sib sic sif sii sio sir sis sit siu sob soc sof soi soo sor sos sot sou soy sr- srb src srf sri sro srr srs srt sry ss- ssb ssc ssf ssi sso ssr sss sst ssu stb stc stf sti sto str sts stt stu sty sub suc suf sui suo sur sus sut suu suy sy- syb syc syi syr sys syt syu tbb tbc tbf tbi tbo tbr tbs tbt tbu tcb tcc tcf tci tco tcr tcs tct tcu tfb tfc tff tfi tfo tfr tfs tft tfu tib tic tif tii tio tir tis tit tiu tiy to- tob toc tof toi too tor tos tot tou toy trb trc trf tri tro trr trs trt tru try tsb tsc tsf tsi tso tsr tss tst tsu tsy ttb ttc ttf tti tto ttr tts ttt ttu tty tub tuc tuf tui tuo tur tus tut tuu tuy tyc tyf tyo tyr tys tyt ubb ubc ubf ubi ubo ubr ubs ubt ubu uby ucb ucc ucf uci uco ucr ucs uct ucu ufc uff ufi ufo ufr ufs uft ufu uib uic uif uii uio uir uis uit uiu uob uoc uoo uor uos uot ur- urb urc urf uri uro urr urs urt uru ury usb usc usf usi uso usr uss ust usu utb utc utf uti uto utr uts utt utu uty uuc uur uus uut uuu uyc uyi uyo uys uyu ybc ybf ybi ybr ybs yby ycc ycf yci yco ycs ycu ycy yfc yff yfr yfs yft yfu yif yii yio yir yis yit yob yoc yof yoi yoo yor yos yot you yoy yrc yrf yro yrs yrt yru ysb ysc ysi yso ysr yss yst ysu ysy ytc ytf yto ytr yts ytt ytu yui yuo yur yus yut yuu yuy yyb yyc yyf yys yyt yyu yyy