-ic b-u bbb bbc bbi bbn bbo bbs bbt bbu bby bcb bcc bci bcn bco bcs bct bcu bcy bi- bib bic bii bin bio bis bit biu biy bnb bnc bni bnn bno bns bnt bnu bob boc boi bon boo bos bot bou boy bsb bsc bsi bsn bso bss bst bsu bsy btb btc bti btn bto bts btt btu bty bub buc bui bun buo bus but buu buy by- byc byi byn byo bys byt byu c-- cbb cbc cbi cbn cbo cbs cbt cbu cby ccb ccc cci ccn cco ccs cct ccu ci- cib cic cii cin cio cis cit ciu cn- cnb cnc cni cnn cno cns cnt cnu cny co- cob coc coi con coo cos cot cou coy csb csc csi csn cso css cst csu csy ctb ctc cti ctn cto cts ctt ctu cty cub cuc cui cun cuo cus cut cuu cuy cyb cyc cyn cyo cys cyt ibb ibc ibi ibn ibo ibs ibt ibu iby icb icc ici icn ico ics ict icu icy iib iic iii iin iio iis iit iiu in- inb inc ini inn ino ins int inu iny io- iob ioc ioi ion ioo ios iot iou is- isb isc isi isn iso iss ist isu isy itb itc iti itn ito its itt itu ity iu- iub iuc iui ius iut iyc iyo iys iyt iyy n-i nbb nbc nbi nbn nbo nbs nbt nbu ncb ncc nci ncn nco ncs nct ncu nib nic nii nin nio nis nit niu nnb nnc nni nnn nno nns nnt nnu no- nob noc noi non noo nos not nou noy nsb nsc nsi nsn nso nss nst nsu nsy ntb ntc nti ntn nto nts ntt ntu nub nuc nui nun nuo nus nut nuu nuy nyc nyn nyo nys nyt nyu nyy o-i ob- obb obc obi obn obo obs obt obu oby oc- ocb occ oci ocn oco ocs oct ocu oib oic oii oin oio ois oit oiu on- onb onc oni onn ono ons ont onu ony oo- oob ooc ooi oon ooo oos oot os- osb osc osi osn oso oss ost osu ot- otb otc oti otn oto ots ott otu ou- ouc oui oun ouo ous out oyi oyo oys sbb sbc sbi sbn sbo sbs sbt sbu sby scb scc sci scn sco scs sct scu sib sic sii sin sio sis sit siu snb snc sni snn sno sns snt snu sny sob soc soi son soo sos sot sou soy ss- ssb ssc ssi ssn sso sss sst ssu stb stc sti stn sto sts stt stu sty sub suc sui sun suo sus sut suu suy sy- syb syc syi syn sys syt syu tbb tbc tbi tbn tbo tbs tbt tbu tcb tcc tci tcn tco tcs tct tcu tib tic tii tin tio tis tit tiu tiy tnb tnc tni tnn tno tns tnt to- tob toc toi ton too tos tot tou toy tsb tsc tsi tsn tso tss tst tsu tsy ttb ttc tti ttn tto tts ttt ttu tty tub tuc tui tun tuo tus tut tuu tuy tyc tyn tyo tys tyt ubb ubc ubi ubn ubo ubs ubt ubu uby ucb ucc uci ucn uco ucs uct ucu uib uic uii uin uio uis uit uiu un- unb unc uni unn uno uns unt unu uny uob uoc uon uoo uos uot usb usc usi usn uso uss ust usu utb utc uti utn uto uts utt utu uty uuc uun uus uut uuu uyc uyi uyo uys uyu ybc ybi ybs yby ycc yci yco ycs ycu ycy yii yin yio yis yit ynn yns ynu yny yob yoc yoi yon yoo yos yot you yoy ysb ysc ysi yso yss yst ysu ysy ytc ytn yto yts ytt ytu yui yun yuo yus yut yuu yuy yyb yyc yys yyt yyu yyy