-al -ic a-a a-b a-c a-i aaa aab aac aai aal aap aar aas ab- aba abb abc abi abl abp abr abs ac- aca acb acc aci acl acp acr acs ai- aia aib aic aii ail aip air ais al- ala alb alc ali all alp alr als ap- apa apb apc api apl app apr aps ar- ara arb arc ari arl arp arr ars as- asa asb asc asi asl asp asr ass b-p baa bab bac bai bal bap bar bas bba bbb bbc bbi bbl bbp bbr bbs bca bcb bcc bci bcl bcp bcr bcs bi- bia bib bic bii bil bip bir bis bla blb blc bli bll blp blr bls bpa bpb bpc bpi bpl bpp bpr bps bra brb bri brl brp brr brs bsa bsb bsc bsi bsl bsp bsr bss c-- caa cab cac cai cal cap car cas cba cbb cbc cbi cbl cbp cbr cbs cca ccb ccc cci ccl ccp ccr ccs ci- cia cib cic cii cil cip cir cis cl- cla clb clc cli cll clp clr cls cpa cpb cpc cpi cpl cpp cpr cps cra crb crc cri crl crp crr crs csa csb csc csi csl csp csr css ia- iaa iab iac iai ial iap iar ias iba ibb ibc ibi ibl ibp ibr ibs ica icb icc ici icl icp icr ics iia iib iic iii iil iip iir iis il- ila ilb ilc ili ill ilp ilr ils ipa ipb ipc ipi ipl ipp ipr ips ir- ira irb irc iri irl irp irr irs is- isa isb isc isi isl isp isr iss l-p la- laa lab lac lai lal lap lar las lba lbb lbc lbi lbl lbp lbr lbs lca lcb lcc lci lcl lcp lcr lcs lia lib lic lii lil lip lir lis lla llb llc lli lll llp llr lls lpa lpb lpc lpi lpl lpp lpr lps lra lrb lrc lri lrp lrr lrs lsa lsb lsc lsi lsl lsp lsr lss p-p paa pab pac pai pal pap par pas pba pbb pbc pbi pbl pbp pbr pbs pca pcb pcc pci pcl pcp pcr pcs pia pib pic pii pil pip pir pis pla plb plc pli pll plp plr pls ppa ppb ppc ppi ppl ppp ppr pps pra prb prc pri prl prp prr prs ps- psa psb psc psi psl psp psr pss ra- raa rab rac rai ral rap rar ras rba rbb rbc rbi rbl rbp rbr rbs rca rcb rcc rci rcl rcp rcr rcs ria rib ric rii ril rip rir ris rla rlc rli rll rlp rlr rls rpa rpb rpc rpi rpl rpp rpr rps rra rrb rrc rri rrl rrp rrr rrs rsa rsb rsc rsi rsl rsp rsr rss saa sab sac sai sal sap sar sas sba sbb sbc sbi sbl sbp sbr sbs sca scb scc sci scl scp scr scs sia sib sic sii sil sip sir sis sla slb slc sli sll slp slr sls spa spb spc spi spl spp spr sps sr- sra srb src sri srl srp srr srs ss- ssa ssb ssc ssi ssl ssp ssr sss