-ic b-u bbb bbc bbi bbn bbo bbs bbt bbu bcb bcc bci bcn bco bcs bct bcu bi- bib bic bii bin bio bis bit biu bnb bnc bni bnn bno bns bnt bnu bob boc boi bon boo bos bot bou bsb bsc bsi bsn bso bss bst bsu btb btc bti btn bto bts btt btu bub buc bui bun buo bus but buu c-- cbb cbc cbi cbn cbo cbs cbt cbu 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 co- cob coc coi con coo cos cot cou csb csc csi csn cso css cst csu ctb ctc cti ctn cto cts ctt ctu cub cuc cui cun cuo cus cut cuu ibb ibc ibi ibn ibo ibs ibt ibu icb icc ici icn ico ics ict icu iib iic iii iin iio iis iit iiu in- inb inc ini inn ino ins int inu io- iob ioc ioi ion ioo ios iot iou is- isb isc isi isn iso iss ist isu itb itc iti itn ito its itt itu iu- iub iuc iui ius iut 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 nsb nsc nsi nsn nso nss nst nsu ntb ntc nti ntn nto nts ntt ntu nub nuc nui nun nuo nus nut nuu o-i ob- obb obc obi obn obo obs obt obu 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 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 sbb sbc sbi sbn sbo sbs sbt sbu scb scc sci scn sco scs sct scu sib sic sii sin sio sis sit siu snb snc sni snn sno sns snt snu sob soc soi son soo sos sot sou ss- ssb ssc ssi ssn sso sss sst ssu stb stc sti stn sto sts stt stu sub suc sui sun suo sus sut suu tbb tbc tbi tbn tbo tbs tbt tbu tcb tcc tci tcn tco tcs tct tcu tib tic tii tin tio tis tit tiu tnb tnc tni tnn tno tns tnt to- tob toc toi ton too tos tot tou tsb tsc tsi tsn tso tss tst tsu ttb ttc tti ttn tto tts ttt ttu tub tuc tui tun tuo tus tut tuu ubb ubc ubi ubn ubo ubs ubt ubu 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 uob uoc uon uoo uos uot usb usc usi usn uso uss ust usu utb utc uti utn uto uts utt utu uuc uun uus uut uuu

-ous bbbb bbbs bbci bbin bcbc bcbs bccc bcci bccs bcis bcit bcnu bcos bcsc bcsn bcss bctc bcts bcuc bibb bibi bibo bibs bicc bici bico bics biin biis bin- binc bini binn bino bins bint binu bio- bioc bioi bion bios biot biou bis- bisc biso biss bist bisu bitc bito bits bitt bitu bnib bnin bnoc bnss bobb bobi bobo bobs bobu boco bocs bocu boi- boii boin bois boit boiu bonc boni bonn bono bons bont bonu boob booc boon boos boot bosc bosi bosn boso boss bost bosu botb boti botn boto bots bott boun bous bout bsci bscs bsic bsin bsns bson bsos bssc bsts btcc btcs btob btss bttb btus bubb bubi bubo bubs bubu bucc buci buco bucs bucu buic buin buis buit buiu bunb buni bunn buno buns bunt bunu buon busc busi buss bust busu but- buti buto buts butt buus c-bo cbbc cbbs cbcc cbcn cbcs cbct cbcu cbit cbot cbsc cbsi cbsn cbtc cbus ccbc ccbn cccb cccc ccci cccs cccu ccic ccii ccis ccnb ccnc ccni ccns ccnu ccob ccoc ccsi ccsn ccss ccst cctb cctc cctt ccuc ccus ccut cibc cibi cibo cicc cici cico cics cict cicu ciii ciis ciit cin- cinc cini cino cint ciob cion cios cis- cisc cisn ciss cist citb citi cito cits citt citu ciuc cius cnbc cnci cnco cnib cnic cnss cntc cnut cobb cobi cobo cobs cobu coco coct cocu coin cois coit con- conc coni conn cono cons cont coob coon coos coot cosc cosi coso coss cost cotb cotc coti cotn coto cots cott cotu coub coun cous cout cscb cscc csci csco cscs csib csio csis csit csob csos csot cstc csto csts csus ctbi ctbs ctic ctns ctos ctot ctsc ctsn ctss ctsu cttn ctts cub- cubb cubi cubs cucc cuci cucn cui- cuin cuis cuit cuno cunt cuon cusb cuso cuss cust cusu cut- cutc cuto cuts cutt i-no ibcs ibis ibns ibon ibos ibot ibsn ibss ibtb ibtc ibts ibus icbc icbs iccb iccc icci iccn icco iccs icct iccu icis icnb icnc icns icoc icon icos icsb icsc icsi icss icst icts icub icus iiii iiio iiis iiit iino iioi iioo iios iisc iisi iist iisu iitt iiuc inbo incb inci inco incs inis init inni inno inns innu ino- inoi inon inos inot inou insc inso inss inst insu inti intn into ints intu inui inun inus iobi ioci ioii ioio ioit ioni ionn iono ions iooi iooo ioos ioso iosu ioto ioun ious isbn isbt iscc isci iscn isco iscs isct iscu isic isin isis isit isno isnt iso- isoc ison isos issc issi isso isss issu istc isti isto ists isus itbs itcs itic itin itis itno itoi iton itoo itos itou itsi itso itsu itto iucc iuiu iuno iuss iust n-ii nbbc nbbo