catb catc cati cats catt catu cauc caus caut cbac cbat cbbc cbbs cbca cbcc cbcn cbcs cbct cbcu cbia cbit cbna cbsa cbsc cbsi cbsn cbta cbtc cbus ccaa ccab ccac ccai ccas ccat ccba ccbc ccbn ccca cccb cccc ccci cccs cccu ccic ccii ccis ccna ccnb ccnc ccni ccns ccnu ccsa ccsi ccsn ccss ccst cctb cctc cctt ccuc ccus ccut ciaa cian cias ciat ciau ciba cibc cibi cica cicc cici cics cict cicu ciia ciii ciis ciit cin- cina cinc cini cint cis- cisa cisc cisn ciss cist cita citb citi cits citt citu ciuc cius cnaa cnac cnas cnbc cnci cnib cnic cnna cnsa cnss cnta cntc cnut csaa csab csac csas csat cscb cscc csci cscs csia csib csis csit cssa csta cstc csts csua csus ctab ctan ctba ctbi ctbs ctca ctia ctic ctns ctsa ctsc ctsn ctss ctsu ctta cttn ctts cuan cuau cub- cuba cubb cubi cubs cuca cucc cuci cucn cui- cuin cuis cuit cuna cunt cusa cusb cuss cust cusu cut- cuta cutc cuts cutt iaaa iaac iaai iaas iaat iaba iaca iacc iacs iact iacu iaia iain iais iana ians iasa iasc iasi iata iatc iati ibac iban ibas ibat ibca ibcs ibia ibis ibns ibsa ibsn ibss ibtb ibtc ibts ibus icaa icab icac icai ican icas icat icbc icbs icca iccb iccc icci iccn iccs icct iccu icis icnb icnc icns icsa icsb icsc icsi icss icst icta icts icub icus iiac iias iica iiii iiis iiit iisc iisi iist iisu iita iitt iiuc inab inac inai inan inas inat inau inba inca incb inci incs inia inis init inna inni inns innu insa insc inss inst insu inta inti intn ints intu inua inui inun inus is-a isac isai isan isas isat isba isbn isbt isca iscc isci iscn iscs isct iscu isia isic isin isis isit isna isnt issa issc issi isss issu ista istc isti ists isua isus itaa itac itai itan itas itat itbs itcs itia itic itin itis itsa itsi itsu itta iucc iuiu iuss iust n-ii naaa naab naac naai naan naas naat naba nabc nabi nabs nabu naca nacc naci nacs naia naib naic nain nais nait nan- nana nanb nani nann nans nant nanu nas- nasa nasb nasc nasi nass nast nasu nata natc nati nats natt natu naus naut nbaa nbas nbbc nbca nbcc nbci nbcs nbia nbic nbti ncaa ncac ncat ncba ncbc ncbi ncbs ncca nccc ncci nccn nccs ncct nccu ncia ncis ncit ncna ncnc ncsa ncsc ncsi ncss ncst ncta nctc ncua niab niac nian nias niau nibi nibs nica nicc nici nics nicu niia niit niiu nina nini nins nisa nisi niss nist nisu nita nitb nitc niti nits nnit nnnn nnsa nnss nntn nsaa nsac nsai nsca nscc nscs nsic nsin nsis nsna nssa nssb nssc nsss nstc nsts nstu nsub ntbc ntcc ntia ntis ntnu ntsb ntsc ntss ntsu ntuc ntui nuan nuba nubc nubi nubs nuca nuci nucs nucu nuin nuit nuna nunc nunn nuns nunt nusi nuss nust nusu nuts nutt nutu s-ib s-ic s-ii sa-c saab saac saan saas saat saba sabb sabc sabi sabs sabu saca sacc saci sacn sacs sact sacu saia saic sain sais sait sana sani sann sans sant sanu sasa sasc sasi sass sast sata satb satc sati satn sats satt satu saua sauc saun saus saut sbaa sbac sbai sbas sbbs sbca sbcc sbcs sbct sbia sbic sbsa sbsi sbst sbtc sbtn sbus scaa scab scac scai scan scas scat scba scbi sccc sccs scct sci- scia scic scin scis scit scna scnt scsa scsc scsi scsn scst scsu sctc sctn scts scua scub scun scut siaa siab siac siai sian sias siat siau siba sibc sibi sibs sibu sica sicc sici sics sicu siit sina sini sinn sins sint sinu sisa sisc sisi siss sist sisu sit- sita sitc siti sitn sits sitt situ siui sius siut snab snas snat snba snca sncc snia snib snit snns snub snus ssaa ssab ssac ssan ssas ssat ssau ssbn ssca sscc ssci sscs ssin ssis ssit ssns sssa sssb sssc sssi ssss ssta sstb sstc ssts stab stac stai stan stas stat stau stbc stbs stca stcc stcs stcu stia stib stic stis stit stnn stns stsi stss sttc stub stuc stun stus stut suan suas suat sub- suba subb subi subs suc- succ suci sucs suin suis suit sun- suna sunb suni sunn suns sunt sunu sus- susa susi suss sust susu suta suti sutu suus taa- taan taas taat taba tabb tabc tabi tabs tabu taca tacc taci tacs tact taia tain tais tait tana tani tann tans tant tanu tasa tasb tasc tasi tass tast tasu tata tatb tati tats tatt tatu taua taub tauc taus taut tbas tbbs tbca tbcb tbcc tbit tbst tbta tcbs tcca tccc tccu tcnn tctc tcts tiaa tiab tian tias tiba tibi tibs tibu tica ticc tics tiit tiiu tina tinc tini tinn tins tint tinu tisa tisb tisi tiss tist tita titc titi tits titt titu tnbc tnca tncc tnts tnut tsaa tsai tsat tsau tsbc tsca tscc tsia tsin tsis tsna tssa tssi tsst tstc tsts tsui tsun ttab ttbb ttcn ttss tttt tuan tuas tuat tuba tubb tubs tubu tuca tucc tuin tuis tuit tuiu tuna tunb tunc tuni tunn tuns tunu tusa tusc tusi tuss tust tuta tuti tuts tutt tutu uabc uaca uasa uata uatu uaua ubac ubba ubbi ubic ubii ubis ubit ucai ucan ucas ucat ucbc ucca ucci ucin ucsa ucsb ucsc ucst ucsu ucua ucut uica uint uist uits unaa unac unai unan unas unat unau unca uncc unci uncs unct uni- unia unic unii unin unis unit unna unni unns uns- unsa unsc unst untb unts unus unut us-a usaa usac usan usas usat usba usbc usbs usca uscc uscs usia usin usis usna usnc usnu ussa ussb ussc usss usst ussu usta ustb ustc usti usts usua usui usun usus utac utai