-ic a-a a-b a-c a-i aaa aab aac aaf aai aao aas aay ab- aba abb abc abf abi abo abs aby ac- aca acb acc acf aci aco acs acy af- afa afb afc aff afi afo afs afy ai- aia aib aic aif aii aio ais aiy aoa aob aoc aof aoi aoo aos as- asa asb asc asf asi aso ass asy ay- aya ayc ayf ayi ayo ays baa bab bac baf bai bao bas bay bba bbb bbc bbf bbi bbo bbs bby bca bcb bcc bcf bci bco bcs bcy bfa bfb bfc bff bfi bfo bfs bfy bi- bia bib bic bif bii bio bis biy boa bob boc bof boi boo bos boy bsa bsb bsc bsf bsi bso bss bsy by- bya byc byf byi byo bys c-- caa cab cac caf cai cao cas cay cba cbb cbc cbf cbi cbo cbs cby cca ccb ccc ccf cci cco ccs cfa cfb cfc cff cfi cfo cfs ci- cia cib cic cif cii cio cis co- coa cob coc cof coi coo cos coy csa csb csc csf csi cso css csy cya cyb cyc cyf cyo cys faa fab fac faf fai fao fas fay fba fbb fbc fbf fbi fbo fbs fca fcb fcc fcf fci fco fcs fcy ffa ffc fff ffi ffo ffs ffy fia fib fic fif fii fis foa fob foc fof foi foo fos foy fsa fsb fsc fsf fsi fso fss fy- fya fyb fyc fyi fyo i-f ia- iaa iab iac iaf iai iao ias iba ibb ibc ibf ibi ibo ibs iby ica icb icc icf ici ico ics icy ifa ifb ifc iff ifi ifo ifs ify iia iib iic iif iii iio iis io- ioa iob ioc iof ioi ioo ios is- isa isb isc isf isi iso iss isy iya iyc iyo iys iyy o-i oaa oab oac oaf oai oao oas ob- oba obb obc obf obi obo obs oby oc- oca ocb occ ocf oci oco ocs of- ofa ofb ofc off ofi ofo ofs oia oib oic oif oii oio ois oo- ooa oob ooc oof ooi ooo oos os- osa osb osc osf osi oso oss oya oyi oyo oys saa sab sac saf sai sao sas say sba sbb sbc sbf sbi sbo sbs sby sca scb scc scf sci sco scs sfa sfb sfc sff sfi sfo sfs sia sib sic sif sii sio sis soa sob soc sof soi soo sos soy ss- ssa ssb ssc ssf ssi sso sss sy- sya syb syc syi sys yaa yab yac yaf yai yao yas yay ybc ybf ybi ybs yby yca ycc ycf yci yco ycs ycy yfa yfc yff yfs yif yii yio yis yob yoc yof yoi yoo yos yoy ysa ysb ysc ysi yso yss ysy yyb yyc yyf yys yyy

a-ii a-ya a-yo aaaa aaab aaac aaaf aaai aaas aaba aabb aabc aabi aaby aaca aacb aacc aacf aaci aaco aacs aacy aafa aafb aafc aaff aafi aaib aaic aaii aais aaoo aasa aasc aasf aasi aass abaa abab abac abaf abai abas abay abb- abba abbb abbi abbo abbs abby abca abcb abcc abcf abci abcs abff abia abib abic abis abiy aboa abob abof aboo abos aboy abs- absa absf absi abss abyc abys abyy acaa acab acac acai acas acba acca accc accf acci acco accs accy acfc acfi acfs aci- acia acic acif acis acoa acos acoy acsa acsc acsi acss afaa afao afbs afca afcb afcc afci afcs affa affc affi affo affs affy afia afib afif afis afoa afoo afsa afsb afsc aiai aias aiba aibo aica aicc aicf aics aiff aifs aiia aiib aiic aioc aioi aisa aisb aisi aiso aisy aiyf aoba aoca aocs aoss asaa asab asac asaf asai asao asas asay asba asbo asby asc- asca ascb ascc asci asco asfa asfi asia asic asif asii asio asis asob asoc asof asoi asos assa assc assi asso asss assy asya ay-o ayao ayas ayay ayca ayoo ayos ayya ba-i baaa baaf baas baba babb babi babo babs baby bac- baca bacc baci baco bacs bafc baff bafo baia baib baic baio bais baos basa basc basf basi baso bass baya bayi bayo bays bbas bbay bbbb bbbs bbci bbfc bboy bbyo bcaa bcas bcbc bcbs bcca bccc bcci bccs bcfc bcia bcis bcof bcos bcsa bcsc bcss bfas bfca bfcs bffs bfsi biaf biao bias biba bibb bibi bibo bibs bica bicc bici bico bics bifa biff bifi biis bio- bioc bioi bios bis- bisa bisc biso biss bisy biya biys boab boac boai boas boba bobb bobi bobo bobs boby boca boco bocs bofa boff bofs boi- boii bois boob booc boof boos bosa bosc bosi boso boss boya boyf boyi boyo boys bsaa bsac bsas bsci bscs bsfa bsfc bsff bsfs bsic bsos bssc byas byoa byob byoc byoi byos bysb bysi byso byss bysy c-bo caaa caab caac caaf caas caba cabf cabi cabo cabs caby cac- caca cacc caci caco cafa cafb cafc caff cafs caia caib caic caio cais caoi caos casa casb casc casi caso cass cayo cays cbac cbbc cbbs cbca cbcc cbcs cbfb cbfc cbia cbsa cbsc cbsi ccaa ccab ccac ccaf ccai ccas ccba ccbc ccca cccb cccc cccf ccci cccs ccfa ccfc ccff ccfi ccic ccii ccis ccob ccoc ccsa ccsf ccsi ccss cfaa cfab cfac cfao cfbc cfbs cfca cfcb cfcf cfco cfcs cfcy cffb cfia cfoa cfos cfsa cfsi ciaa ciao cias ciba cibc cibi cibo cica cicc cici cico cics cifa ciff cifs ciia ciii ciis ciob cios cis- cisa cisc ciss cisy coai coas coba cobb cobi cobo cobs coby coca coco cofc coff cofi cofs coia coif cois coob coof coos cosa cosc cosi coso coss cosy coya coyf coyo coys csaa csab csac csao csas csbf cscb cscc cscf csci csco cscs csfc csia csib csio csis csob csos cssa csys