-al -ic a-a a-b a-c a-i aaa aab aac aai aal aar aas ab- aba abb abc abi abl abr abs ac- aca acb acc aci acl acr acs ai- aia aib aic aii ail air ais al- ala alb alc ali all alr als ar- ara arb arc ari arl arr ars as- asa asb asc asi asl asr ass baa bab bac bai bal bar bas bba bbb bbc bbi bbl bbr bbs bca bcb bcc bci bcl bcr bcs bi- bia bib bic bii bil bir bis bla blb blc bli bll blr bls bra brb bri brl brr brs bsa bsb bsc bsi bsl bsr bss c-- caa cab cac cai cal car cas cba cbb cbc cbi cbl cbr cbs cca ccb ccc cci ccl ccr ccs ci- cia cib cic cii cil cir cis cl- cla clb clc cli cll clr cls cra crb crc cri crl crr crs csa csb csc csi csl csr css ia- iaa iab iac iai ial iar ias iba ibb ibc ibi ibl ibr ibs ica icb icc ici icl icr ics iia iib iic iii iil iir iis il- ila ilb ilc ili ill ilr ils ir- ira irb irc iri irl irr irs is- isa isb isc isi isl isr iss la- laa lab lac lai lal lar las lba lbb lbc lbi lbl lbr lbs lca lcb lcc lci lcl lcr lcs lia lib lic lii lil lir lis lla llb llc lli lll llr lls lra lrb lrc lri lrr lrs lsa lsb lsc lsi lsl lsr lss ra- raa rab rac rai ral rar ras rba rbb rbc rbi rbl rbr rbs rca rcb rcc rci rcl rcr rcs ria rib ric rii ril rir ris rla rlc rli rll rlr rls rra rrb rrc rri rrl rrr rrs rsa rsb rsc rsi rsl rsr rss saa sab sac sai sal sar sas sba sbb sbc sbi sbl sbr sbs sca scb scc sci scl scr scs sia sib sic sii sil sir sis sla slb slc sli sll slr sls sr- sra srb src sri srl srr srs ss- ssa ssb ssc ssi ssl ssr sss