-al -er -ic a-a a-b a-c a-i aaa aab aac aae aai aal aap aar ab- aba abb abc abe abi abl abp abr ac- aca acb acc ace aci acl acp acr aea aeb aec aee aei ael aep aer ai- aia aib aic aie aii ail aip air al- ala alb alc ale ali all alp alr ap- apa apb apc ape api apl app apr ar- ara arb arc are ari arl arp arr b-p baa bab bac bae bai bal bap bar bba bbb bbc bbe bbi bbl bbp bbr bca bcb bcc bce bci bcl bcp bcr be- bea beb bec bee bei bel bep ber bi- bia bib bic bie bii bil bip bir bla blb blc ble bli bll blp blr bpa bpb bpc bpe bpi bpl bpp bpr bra brb bre bri brl brp brr c-- caa cab cac cae cai cal cap car cba cbb cbc cbe cbi cbl cbp cbr cca ccb ccc cce cci ccl ccp ccr ce- cea ceb cec cee cei cel cep cer ci- cia cib cic cie cii cil cip cir cl- cla clb clc cle cli cll clp clr cpa cpb cpc cpe cpi cpl cpp cpr cra crb crc cre cri crl crp crr eaa eab eac eae eai eal eap ear eba ebb ebc ebe ebi ebl ebp ebr ec- eca ecb ecc ece eci ecl ecr eea eeb eec eee eel eep eer eia eib eic eie eii eil eip eir ela elb elc ele eli ell elp elr ep- epa epb epc epe epi epl epp epr era erb erc ere eri erl erp err ia- iaa iab iac iae iai ial iap iar iba ibb ibc ibe ibi ibl ibp ibr ica icb icc ice ici icl icp icr ie- iea iec iee iei iel iep ier iia iib iic iie iii iil iip iir il- ila ilb ilc ile ili ill ilp ilr ipa ipb ipc ipe ipi ipl ipp ipr ir- ira irb irc ire iri irl irp irr l-p la- laa lab lac lae lai lal lap lar lba lbb lbc lbe lbi lbl lbp lbr lca lcb lcc lce lci lcl lcp lcr lea leb lec lee lei lel lep ler lia lib lic lie lii lil lip lir lla llb llc lle lli lll llp llr lpa lpb lpc lpe lpi lpl lpp lpr lra lrb lrc lri lrp lrr p-p paa pab pac pae pai pal pap par pba pbb pbc pbe pbi pbl pbp pbr pca pcb pcc pce pci pcl pcp pcr pea peb pec pee pei pel pep per pia pib pic pie pii pil pip pir pla plb plc ple pli pll plp plr ppa ppb ppc ppe ppi ppl ppp ppr pra prb prc pre pri prl prp prr ra- raa rab rac rae rai ral rap rar rba rbb rbc rbe rbi rbl rbp rbr rca rcb rcc rce rci rcl rcp rcr re- rea reb rec ree rei rel rep rer ria rib ric rie rii ril rip rir rla rlc rle rli rll rlp rlr rpa rpb rpc rpe rpi rpl rpp rpr rra rrb rrc rri rrl rrp rrr