-er -ic a-a a-c a-i aaa aac aad aae aai aam aar aax ac- aca acc acd ace aci acm acr acx ad- ada adc add ade adi adm adr adx aea aec aed aee aei aem aer aex ai- aia aic aid aie aii aim air aix ama amc amd ame ami amm amr amx ar- ara arc ard are ari arm arr arx ax- axa axe axi axm axr axx c-- caa cac cad cae cai cam car cax cca ccc ccd cce cci ccm ccr ccx cda cdc cdd cde cdi cdm cdr cdx ce- cea cec ced cee cei cem cer cex ci- cia cic cid cie cii cim cir cix cma cmc cmd cme cmi cmm cmr cmx cra crc crd cre cri crm crr crx cxc cxi cxr cxx daa dac dad dae dai dam dar dax dca dcc dcd dce dci dcm dcr dcx dda ddc ddd dde ddi ddm ddr ddx de- dea dec ded dee dei dem der dex di- dia dic did die dii dim dir dix dma dmc dmd dme dmi dmm dmr dmx dra drc drd dre dri drm drr drx dxc dxd dxi dxr dxx eaa eac ead eae eai eam ear eax ec- eca ecc ecd ece eci ecm ecr ecx ed- eda edc edd ede edi edm edr edx eea eec eed eee eem eer eex eia eic eid eie eii eim eir eix em- ema emc emd eme emi emm emr emx era erc erd ere eri erm err ex- exa exc exd exe exi exr exx i-d ia- iaa iac iad iae iai iam iar ica icc icd ice ici icm icr ida idc idd ide idi idm idr idx ie- iea iec ied iee iei iem ier iex iia iic iid iie iii iim iir iix im- ima imc imd ime imi imm imx ir- ira irc ird ire iri irm irr irx ixc ixe ixi m-r maa mac mad mae mai mam mar max mc- mca mcc mcd mce mci mcm mcr mcx mda mdc mdd mde mdi mdm mdr mdx mea mec med mee mei mem mer mex mi- mia mic mid mie mii mim mir mix mma mmc mmd mme mmi mmm mmr mmx mra mrc mrd mre mri mrm mrr mrx mxa mxc mxd mxi mxr ra- raa rac rad rae rai ram rar rax rca rcc rcd rce rci rcm rcr rcx rda rdc rdd rde rdi rdm rdr rdx re- rea rec red ree rei rem rer rex ria ric rid rie rii rim rir rix rma rmc rmd rme rmi rmm rmr rmx rra rrc rrd rri rrm rrr rxr xaa xac xad xam xar xcd xci xcr xcx xda xdc xde xdi xdm xdr xed xee xem xer xex xia xic xie xii xix xma xmc xmd xmi xmm xmr xmx xrc xrd xrx xxi xxx