-er a-a a-b a-i a-z aaa aab aad aae aai aam aar aaz ab- aba abb abd abe abi abm abr abz ad- ada adb add ade adi adm adr adz aea aeb aed aee aei aem aer aez ai- aia aib aid aie aii aim air aiz ama amb amd ame ami amm amr amz ar- ara arb ard are ari arm arr arz az- aza azb azd aze azi azm azz baa bab bad bae bai bam bar baz bba bbb bbd bbe bbi bbm bbr bda bdb bdd bde bdi bdm bdr bdz be- bea beb bed bee bei bem ber bez bi- bia bib bid bie bii bim bir biz bma bmb bmd bme bmi bmm bmr bmz bra brb brd bre bri brm brr brz bza bzd bze bzr bzz daa dab dad dae dai dam dar daz dba dbb dbd dbe dbi dbm dbr dbz dda ddb ddd dde ddi ddm ddr ddz de- dea deb ded dee dei dem der dez di- dia dib did die dii dim dir diz dma dmb dmd dme dmi dmm dmr dmz dra drb drd dre dri drm drr drz dza dzb dzd dze dzi dzr eaa eab ead eae eai eam ear eaz eba ebb ebd ebe ebi ebm ebr ed- eda edb edd ede edi edm edr eea eeb eed eee eem eer eia eib eid eie eii eim eir em- ema emb emd eme emi emm emr era erb erd ere eri erm err erz eze ezr ezz i-d ia- iaa iab iad iae iai iam iar iaz iba ibb ibd ibe ibi ibm ibr ibz ida idb idd ide idi idm idr ie- iea ied iee iei iem ier iia iib iid iie iii iim iir im- ima imb imd ime imi imm imz ir- ira irb ird ire iri irm irr iza ize izi izm izz m-r maa mab mad mae mai mam mar maz mba mbb mbd mbe mbi mbm mbr mda mdb mdd mde mdi mdm mdr mdz mea meb med mee mei mem mer mez mi- mia mib mid mie mii mim mir miz mma mmb mmd mme mmi mmm mmr mmz mra mrb mrd mre mri mrm mrr mrz mza mzb mzi mzm ra- raa rab rad rae rai ram rar raz rba rbb rbd rbe rbi rbm rbr rda rdb rdd rde rdi rdm rdr re- rea reb red ree rei rem rer rez ria rib rid rie rii rim rir riz rma rmb rmd rme rmi rmm rmr rra rrb rrd rri rrm rrr rza rzb rze rzm zaa zab zad zai zam zar zaz zbb zbm zbr zdm zea zeb zed zee zem zer zez zia zib zid zie zim zir ziz zma zmb zmd zmm zzr zzz