-al -ic a-a a-b a-c a-i aaa aab aac aad aai aak aal aar aas ab- aba abb abc abd abi abk abl abr abs ac- aca acb acc acd aci ack acl acr acs ad- ada adb adc add adi adk adl adr ads ai- aia aib aic aid aii aik ail air ais aka akb akc akd aki akk akl akr aks al- ala alb alc ald ali alk all alr als ar- ara arb arc ard ari ark arl arr ars as- asa asb asc asd asi ask asl asr ass baa bab bac bad bai bak bal bar bas bba bbb bbc bbd bbi bbk bbl bbr bbs bca bcb bcc bcd bci bck bcl bcr bcs bda bdb bdc bdd bdi bdk bdl bdr bds bi- bia bib bic bid bii bik bil bir bis bka bkb bkc bkk bkl bkr bks bla blb blc bld bli blk bll blr bls bra brb brd bri brk brl brr brs bsa bsb bsc bsd bsi bsk bsl bsr bss c-- caa cab cac cad cai cak cal car cas cba cbb cbc cbd cbi cbk cbl cbr cbs cca ccb ccc ccd cci cck ccl ccr ccs cda cdb cdc cdd cdi cdk cdl cdr cds ci- cia cib cic cid cii cik cil cir cis cka ckb ckc ckd cki cks cl- cla clb clc cld cli clk cll clr cls cra crb crc crd cri crk crl crr crs csa csb csc csd csi csk csl csr css daa dab dac dad dai dak dal dar das dba dbb dbc dbd dbi dbk dbl dbr dbs dca dcb dcc dcd dci dck dcl dcr dcs dda ddb ddc ddd ddi ddk ddl ddr dds di- dia dib dic did dii dik dil dir dis dka dkb dkc dki dkk dkl dkr dks dl- dla dlb dlc dld dli dlk dll dlr dls dra drb drc drd dri drk drl drr drs dsa dsb dsc dsd dsi dsk dsl dsr dss i-d ia- iaa iab iac iad iai ial iar ias iba ibb ibc ibd ibi ibk ibl ibr ibs ica icb icc icd ici ick icl icr ics ida idb idc idd idi idk idl idr ids iia iib iic iid iii iil iir iis ika ikb ikc iki ikk ikl ikr iks il- ila ilb ilc ild ili ilk ill ilr ils ir- ira irb irc ird iri irk irl irr irs is- isa isb isc isd isi isk isl isr iss ka- kaa kab kac kad kai kak kal kar kas kba kbb kbc kbd kbi kbk kbl kbr kbs kca kcb kcc kcd kci kck kcl kcr kcs kda kdb kdc kdk kdl kdr kds kia kib kic kid kii kik kil kir kis kkb kkc kki kkk kkl kkr kks kl- kla klb klc kld kli klr kls kra krc krd kri krk krl krr krs ksa ksb ksc ksd ksi ksk ksl ksr kss la- laa lab lac lad lai lak lal lar las lba lbb lbc lbd lbi lbk lbl lbr lbs lca lcb lcc lcd lci lck lcl lcr lcs lda ldb ldc ldd ldi ldk ldl ldr lds lia lib lic lid lii lik lil lir lis lka lkb lkl lkr lks lla llb llc lld lli llk lll llr lls lra lrb lrc lrd lri lrk lrr lrs lsa lsb lsc lsd lsi lsk lsl lsr lss ra- raa rab rac rad rai rak ral rar ras rba rbb rbc rbd rbi rbk rbl rbr rbs rca rcb rcc rcd rci rcl rcr rcs rda rdb rdc rdd rdi rdl rdr rds ria rib ric rid rii rik ril rir ris rkb rkc rkk rks rla rlc rld rli rll rlr rls rra rrb rrc rrd rri rrk rrl rrr rrs rsa rsb rsc rsd rsi rsk rsl rsr rss saa sab sac sad sai sak sal sar sas sba sbb sbc sbd sbi sbk sbl sbr sbs sca scb scc scd sci sck scl scr scs sda sdb sdc sdd sdi sdk sdl sdr sds sia sib sic sid sii sik sil sir sis sk- ska skb skc skd ski skk skl skr sks sla slb slc sld sli slk sll slr sls sr- sra srb src srd sri srk srl srr srs ss- ssa ssb ssc ssd ssi ssk ssl ssr sss

a-ak a-ii aaaa aaab aaac aaad aaai aaal aaar aaas aaba aabb aabc aabd aabi aabl aaca aacb aacc aacd aaci aack aacl aacr aacs aada aadc aadi aads aaib aaic aaii aais aaka aala aalc aald aali aall aals aara aarc aard aari aars aasa aasc aasd aasi aass abaa abab abac abad abai abak abal abar abas abb- abba abbb abbi abbr abbs abca abcb abcc abcd abci abcl abcr abcs abda abdi abia abib abic abid abil abir abis abla abls abra abrc abri abrs abs- absa absd absi absl abss acaa acab acac acad acai acar acas acba acbl acca accc accd acci accs acda acdb acdc acdi acds aci- acia acic acid acir acis ackd acks acla aclc acli aclr acls acr- acra acrc acri acrr acrs acsa acsc acsd acsi acsl acss adaa adab adac adad adai adak adal adar adas adba adbc adbi adcc adci adcs adda addc addd addi addl addr adds adia adib adic adik adir adis adki adli adls adra adrs adsa adsi adsl adsr adss aiai aias aiba aibl aica aicc aicd aicr aics aida aidb aidc aidi aidr aids aiia aiib aiic aiid aiir aika aiki aiks aila aild aili ails aira aird airi airs aisa aisb aisd aisi aisk aisl aisr akaa akai akal akar akas akca akia akid akik akil akir akis akka akki akr- akra aksa aksi alaa alac alad alai alak alal alar alas alb- alba albc albi albs alca alcc alcs ald- alda aldi aldl alds ali- alia alib alid alii alik alil alir alis alk- alka alkb alkd alki all- alla alli alll