-ic -ji a-a a-b a-c a-i aaa aab aac aai aaj aak aar aas ab- aba abb abc abi abj abk abr abs ac- aca acb acc aci acj ack acr acs ai- aia aib aic aii aik air ais aja ajb ajc aji ajj ajk ajr ajs aka akb akc aki akj akk akr aks ar- ara arb arc ari arj ark arr ars as- asa asb asc asi asj ask asr ass baa bab bac bai baj bak bar bas bba bbb bbc bbi bbk bbr bbs bca bcb bcc bci bcj bck bcr bcs bi- bia bib bic bii bij bik bir bis bja bjc bji bjj bjk bjr bjs bka bkb bkc bkk bkr bks bra brb bri brj brk brr brs bsa bsb bsc bsi bsj bsk bsr bss c-- c-j caa cab cac cai caj cak car cas cba cbb cbc cbi cbj cbk cbr cbs cca ccb ccc cci ccj cck ccr ccs ci- cia cib cic cii cij cik cir cis cja cjb cjc cjk cjr cjs cka ckb ckc cki cks cra crb crc cri crj crk crr crs csa csb csc csi csj csk csr css ia- iaa iab iac iai iar ias iba ibb ibc ibi ibj ibk ibr ibs ica icb icc ici icj ick icr ics iia iib iic iii iij iir iis ija ijb ijc iji ijk ijs ika ikb ikc iki ikk ikr iks ir- ira irb irc iri irj irk irr irs is- isa isb isc isi isj isk isr iss j-i jaa jab jac jai jaj jak jar jas jba jbc jbi jbj jbk jbr jbs jca jcb jcc jci jck jcr jcs jia jib jic jii jij jir jis jja jjb jjc jjj jjk jjr jjs jka jkb jkk jkr jks jra jrb jrc jri jrk jrr jrs jsa jsb jsc jsi jsj jsk jsr jss ka- kaa kab kac kai kaj kak kar kas kba kbb kbc kbi kbk kbr kbs kca kcb kcc kci kck kcr kcs kia kib kic kii kij kik kir kis kjb kjc kji kjr kjs kkb kkc kki kkk kkr kks kra krc kri krk krr krs ksa ksb ksc ksi ksk ksr kss ra- raa rab rac rai raj rak rar ras rba rbb rbc rbi rbk rbr rbs rca rcb rcc rci rcj rcr rcs ria rib ric rii rik rir ris rja rjc rjk rjr rkb rkc rkk rks rra rrb rrc rri rrk rrr rrs rsa rsb rsc rsi rsj rsk rsr rss saa sab sac sai saj sak sar sas sba sbb sbc sbi sbj sbk sbr sbs sca scb scc sci scj sck scr scs sia sib sic sii sij sik sir sis sja sjb sjc sji sjj sjk sjr sjs sk- ska skb skc ski skj skk skr sks sr- sra srb src sri srj srk srr srs ss- ssa ssb ssc ssi ssj ssk ssr sss