-al -ic a-a a-b a-c a-i aaa aab aac aae aai aal aap aas ab- aba abb abc abe abi abl abp abs ac- aca acb acc ace aci acl acp acs aea aeb aec aee aei ael aep aes ai- aia aib aic aie aii ail aip ais al- ala alb alc ale ali all alp als ap- apa apb apc ape api apl app aps as- asa asb asc ase asi asl asp ass b-p baa bab bac bae bai bal bap bas bba bbb bbc bbe bbi bbl bbp bbs bca bcb bcc bce bci bcl bcp bcs be- bea beb bec bee bei bel bep bes bi- bia bib bic bie bii bil bip bis bla blb blc ble bli bll blp bls bpa bpb bpc bpe bpi bpl bpp bps bsa bsb bsc bse bsi bsl bsp bss c-- caa cab cac cae cai cal cap cas cba cbb cbc cbe cbi cbl cbp cbs cca ccb ccc cce cci ccl ccp ccs ce- cea ceb cec cee cei cel cep ces ci- cia cib cic cie cii cil cip cis cl- cla clb clc cle cli cll clp cls cpa cpb cpc cpe cpi cpl cpp cps csa csb csc cse csi csl csp css eaa eab eac eae eai eal eap eas eba ebb ebc ebe ebi ebl ebp ebs ec- eca ecb ecc ece eci ecl ecs eea eeb eec eee eel eep ees eia eib eic eie eii eil eip eis ela elb elc ele eli ell elp els ep- epa epb epc epe epi epl epp eps es- esa esb esc ese esi esl esp ess ia- iaa iab iac iae iai ial iap ias iba ibb ibc ibe ibi ibl ibp ibs ica icb icc ice ici icl icp ics ie- iea iec iee iei iel iep ies iia iib iic iie iii iil iip iis il- ila ilb ilc ile ili ill ilp ils ipa ipb ipc ipe ipi ipl ipp ips is- isa isb isc ise isi isl isp iss l-p la- laa lab lac lae lai lal lap las lba lbb lbc lbe lbi lbl lbp lbs lca lcb lcc lce lci lcl lcp lcs lea leb lec lee lei lel lep les lia lib lic lie lii lil lip lis lla llb llc lle lli lll llp lls lpa lpb lpc lpe lpi lpl lpp lps lsa lsb lsc lse lsi lsl lsp lss p-p paa pab pac pae pai pal pap pas pba pbb pbc pbe pbi pbl pbp pbs pca pcb pcc pce pci pcl pcp pcs pea peb pec pee pei pel pep pes pia pib pic pie pii pil pip pis pla plb plc ple pli pll plp pls ppa ppb ppc ppe ppi ppl ppp pps ps- psa psb psc pse psi psl psp pss saa sab sac sae sai sal sap sas sba sbb sbc sbe sbi sbl sbp sbs sca scb scc sce sci scl scp scs se- sea seb sec see sei sel sep ses sia sib sic sie sii sil sip sis sla slb slc sle sli sll slp sls spa spb spc spe spi spl spp sps ss- ssa ssb ssc sse ssi ssl ssp sss