-er -ic a-a a-b a-c a-i aaa aab aac aae aah aai aam aar ab- aba abb abc abe abh abi abm abr ac- aca acb acc ace ach aci acm acr aea aeb aec aee aeh aei aem aer aha ahb ahc ahe ahh ahi ahm ahr ai- aia aib aic aie aih aii aim air ama amb amc ame amh ami amm amr ar- ara arb arc are arh ari arm arr baa bab bac bae bah bai bam bar bba bbb bbc bbe bbh bbi bbm bbr bca bcb bcc bce bch bci bcm bcr be- bea beb bec bee beh bei bem ber bha bhb bhc bhe bhh bhi bhm bhr bi- bia bib bic bie bih bii bim bir bma bmb bmc bme bmh bmi bmm bmr bra brb bre brh bri brm brr c-- caa cab cac cae cah cai cam car cba cbb cbc cbe cbh cbi cbm cbr cca ccb ccc cce cch cci ccm ccr ce- cea ceb cec cee ceh cei cem cer ch- cha chb chc che chh chi chm chr ci- cia cib cic cie cih cii cim cir cma cmb cmc cme cmh cmi cmm cmr cra crb crc cre crh cri crm crr eaa eab eac eae eah eai eam ear eba ebb ebc ebe ebh ebi ebm ebr ec- eca ecb ecc ece ech eci ecm ecr eea eeb eec eee eem eer eha ehb ehc ehe ehh ehi ehm ehr eia eib eic eie eii eim eir em- ema emb emc eme emh emi emm emr era erb erc ere erh eri erm err h-i haa hab hac hae hah hai ham har hba hbb hbc hbe hbh hbi hbm hbr hca hcb hcc hce hch hci hcm hcr he- hea heb hec hee heh hei hem her hha hhb hhc hhe hhh hhi hhm hhr hia hib hic hie hih hii him hir hma hmb hmc hme hmh hmi hmm hmr hr- hra hrb hrc hre hrh hri hrm hrr ia- iaa iab iac iae iah iai iam iar iba ibb ibc ibe ibh ibi ibm ibr ica icb icc ice ich ici icm icr ie- iea iec iee iei iem ier iha ihb ihc ihe ihh ihi ihm ihr iia iib iic iie iih iii iim iir im- ima imb imc ime imh imi imm ir- ira irb irc ire iri irm irr m-r maa mab mac mae mah mai mam mar mba mbb mbc mbe mbh mbi mbm mbr mc- mca mcb mcc mce mch mci mcm mcr mea meb mec mee meh mei mem mer mha mhc mhh mhi mhm mhr mi- mia mib mic mie mih mii mim mir mma mmb mmc mme mmh mmi mmm mmr mra mrb mrc mre mrh mri mrm mrr ra- raa rab rac rae rah rai ram rar rba rbb rbc rbe rbh rbi rbm rbr rca rcb rcc rce rch rci rcm rcr re- rea reb rec ree reh rei rem rer rh- rha rhb rhc rhe rhh rhi rhm rhr ria rib ric rie rih rii rim rir rma rmb rmc rme rmh rmi rmm rmr rra rrb rrc rrh rri rrm rrr