-ic a-a a-b a-c a-i aaa aab aac aae aah aai aam aas ab- aba abb abc abe abh abi abm abs ac- aca acb acc ace ach aci acm acs aea aeb aec aee aeh aei aem aes aha ahb ahc ahe ahh ahi ahm ahs ai- aia aib aic aie aih aii aim ais ama amb amc ame amh ami amm ams as- asa asb asc ase ash asi asm ass baa bab bac bae bah bai bam bas bba bbb bbc bbe bbh bbi bbm bbs bca bcb bcc bce bch bci bcm bcs be- bea beb bec bee beh bei bem bes bha bhb bhc bhe bhh bhi bhm bhs bi- bia bib bic bie bih bii bim bis bma bmb bmc bme bmh bmi bmm bms bsa bsb bsc bse bsh bsi bsm bss c-- caa cab cac cae cah cai cam cas cba cbb cbc cbe cbh cbi cbm cbs cca ccb ccc cce cch cci ccm ccs ce- cea ceb cec cee ceh cei cem ces ch- cha chb chc che chh chi chm chs ci- cia cib cic cie cih cii cim cis cma cmb cmc cme cmh cmi cmm cms csa csb csc cse csh csi csm css eaa eab eac eae eah eai eam eas eba ebb ebc ebe ebh ebi ebm ebs ec- eca ecb ecc ece ech eci ecm ecs eea eeb eec eee eem ees eha ehb ehc ehe ehh ehi ehm ehs eia eib eic eie eii eim eis em- ema emb emc eme emh emi emm ems es- esa esb esc ese esh esi esm ess h-i haa hab hac hae hah hai ham has hba hbb hbc hbe hbh hbi hbm hbs hca hcb hcc hce hch hci hcm hcs he- hea heb hec hee heh hei hem hes hha hhb hhc hhe hhh hhi hhm hhs hia hib hic hie hih hii him his hma hmb hmc hme hmh hmi hmm hms hsa hsb hsc hse hsh hsi hsm hss ia- iaa iab iac iae iah iai iam ias iba ibb ibc ibe ibh ibi ibm ibs ica icb icc ice ich ici icm ics ie- iea iec iee iei iem ies iha ihb ihc ihe ihh ihi ihm ihs iia iib iic iie iih iii iim iis im- ima imb imc ime imh imi imm ims is- isa isb isc ise ish isi ism iss maa mab mac mae mah mai mam mas mba mbb mbc mbe mbh mbi mbm mbs mc- mca mcb mcc mce mch mci mcm mcs mea meb mec mee meh mei mem mes mha mhc mhh mhi mhm mhs mi- mia mib mic mie mih mii mim mis mma mmb mmc mme mmh mmi mmm mms msa msb msc mse msh msi msm mss saa sab sac sae sah sai sam sas sba sbb sbc sbe sbh sbi sbm sbs sca scb scc sce sch sci scm scs se- sea seb sec see seh sei sem ses sh- sha shb shc she shh shi shm shs sia sib sic sie sih sii sim sis sma smb smc sme smh smi smm sms ss- ssa ssb ssc sse ssh ssi ssm sss