-er -ic a-a a-c a-i aaa aac aad aae aah aai aar aax ac- aca acc acd ace ach aci acr acx ad- ada adc add ade adh adi adr adx aea aec aed aee aeh aei aer aex aha ahc ahd ahe ahh ahi ahr ahx ai- aia aic aid aie aih aii air aix ar- ara arc ard are arh ari arr arx ax- axa axe axh axi axr axx c-- caa cac cad cae cah cai car cax cca ccc ccd cce cch cci ccr ccx cda cdc cdd cde cdh cdi cdr cdx ce- cea cec ced cee ceh cei cer cex ch- cha chc chd che chh chi chr chx ci- cia cic cid cie cih cii cir cix cra crc crd cre crh cri crr crx cxc cxh cxi cxr cxx daa dac dad dae dah dai dar dax dca dcc dcd dce dci dcr dcx dda ddc ddd dde ddh ddi ddr ddx de- dea dec ded dee deh dei der dex dh- dha dhc dhd dhe dhh dhi dhr di- dia dic did die dih dii dir dix dra drc drd dre dri drr drx dxc dxd dxi dxr dxx eaa eac ead eae eah eai ear eax ec- eca ecc ecd ece ech eci ecr ecx ed- eda edc edd ede edh edi edr edx eea eec eed eee eer eex eha ehc ehd ehe ehh ehi ehr eia eic eid eie eii eir eix era erc erd ere erh eri err ex- exa exc exd exe exh exi exr exx h-i haa hac had hae hah hai har hax hca hcc hcd hce hch hci hcr hda hdc hdd hde hdh hdi hdr hdx he- hea hec hed hee heh hei her hex hha hhc hhd hhe hhh hhi hhr hia hic hid hie hih hii hir hix hr- hra hrc hrd hre hrh hri hrr hxc hxd i-d ia- iaa iac iad iae iah iai iar ica icc icd ice ich ici icr ida idc idd ide idh idi idr idx ie- iea iec ied iee iei ier iex iha ihc ihd ihe ihh ihi ihr iia iic iid iie iih iii iir iix ir- ira irc ird ire iri irr irx ixc ixe ixi ra- raa rac rad rae rah rai rar rax rca rcc rcd rce rch rci rcr rcx rda rdc rdd rde rdh rdi rdr rdx re- rea rec red ree reh rei rer rex rh- rha rhc rhd rhe rhh rhi rhr ria ric rid rie rih rii rir rix rra rrc rrd rrh rri rrr rxr xaa xac xad xar xcd xch xci xcr xcx xda xdc xde xdh xdi xdr xed xee xer xex xhd xia xic xie xii xix xrc xrd xrx xxi xxx