-er -ic a-a a-b a-c a-i aaa aab aac aad aae aai aam aap aar ab- aba abb abc abd abe abi abm abp abr ac- aca acb acc acd ace aci acm acp acr ad- ada adb adc add ade adi adm adp adr aea aeb aec aed aee aei aem aep aer ai- aia aib aic aid aie aii aim aip air ama amb amc amd ame ami amm amp amr ap- apa apb apc apd ape api apm app apr ar- ara arb arc ard are ari arm arp arr b-p baa bab bac bad bae bai bam bap bar bba bbb bbc bbd bbe bbi bbm bbp bbr bca bcb bcc bcd bce bci bcm bcp bcr bda bdb bdc bdd bde bdi bdm bdp bdr be- bea beb bec bed bee bei bem bep ber bi- bia bib bic bid bie bii bim bip bir bma bmb bmc bmd bme bmi bmm bmp bmr bpa bpb bpc bpd bpe bpi bpm bpp bpr bra brb brd bre bri brm brp brr c-- caa cab cac cad cae cai cam cap car cba cbb cbc cbd cbe cbi cbm cbp cbr cca ccb ccc ccd cce cci ccm ccp ccr cda cdb cdc cdd cde cdi cdm cdp cdr ce- cea ceb cec ced cee cei cem cep cer ci- cia cib cic cid cie cii cim cip cir cma cmb cmc cmd cme cmi cmm cmp cmr cpa cpb cpc cpd cpe cpi cpm cpp cpr cra crb crc crd cre cri crm crp crr daa dab dac dad dae dai dam dap dar dba dbb dbc dbd dbe dbi dbm dbp dbr dca dcb dcc dcd dce dci dcm dcp dcr dda ddb ddc ddd dde ddi ddm ddp ddr de- dea deb dec ded dee dei dem dep der di- dia dib dic did die dii dim dip dir dma dmb dmc dmd dme dmi dmm dmp dmr dpa dpb dpc dpd dpe dpi dpm dpp dpr dra drb drc drd dre dri drm drp drr eaa eab eac ead eae eai eam eap ear eba ebb ebc ebd ebe ebi ebm ebp ebr ec- eca ecb ecc ecd ece eci ecm ecr ed- eda edb edc edd ede edi edm edp edr eea eeb eec eed eee eem eep eer eia eib eic eid eie eii eim eip eir em- ema emb emc emd eme emi emm emp emr ep- epa epb epc epd epe epi epm epp epr era erb erc erd ere eri erm erp err i-d ia- iaa iab iac iad iae iai iam iap iar iba ibb ibc ibd ibe ibi ibm ibp ibr ica icb icc icd ice ici icm icp icr ida idb idc idd ide idi idm idp idr ie- iea iec ied iee iei iem iep ier iia iib iic iid iie iii iim iip iir im- ima imb imc imd ime imi imm imp ipa ipb ipc ipd ipe ipi ipm ipp ipr ir- ira irb irc ird ire iri irm irp irr m-r maa mab mac mad mae mai mam map mar mba mbb mbc mbd mbe mbi mbm mbp mbr mc- mca mcb mcc mcd mce mci mcm mcp mcr mda mdb mdc mdd mde mdi mdm mdp mdr mea meb mec med mee mei mem mep mer mi- mia mib mic mid mie mii mim mip mir mma mmb mmc mmd mme mmi mmm mmp mmr mpa mpb mpc mpd mpe mpi mpm mpp mpr mra mrb mrc mrd mre mri mrm mrp mrr p-p paa pab pac pad pae pai pam pap par pba pbb pbc pbd pbe pbi pbm pbp pbr pca pcb pcc pcd pce pci pcm pcp pcr pda pdb pdc pdd pde pdi pdm pdp pdr pea peb pec ped pee pei pem pep per pia pib pic pid pie pii pim pip pir pma pmb pmc pmd pme pmi pmm pmp pmr ppa ppb ppc ppd ppe ppi ppm ppp ppr pra prb prc prd pre pri prm prp prr ra- raa rab rac rad rae rai ram rap rar rba rbb rbc rbd rbe rbi rbm rbp rbr rca rcb rcc rcd rce rci rcm rcp rcr rda rdb rdc rdd rde rdi rdm rdp rdr re- rea reb rec red ree rei rem rep rer ria rib ric rid rie rii rim rip rir rma rmb rmc rmd rme rmi rmm rmp rmr rpa rpb rpc rpd rpe rpi rpm rpp rpr rra rrb rrc rrd rri rrm rrp rrr