-ic a-a a-b a-c a-i aaa aab aac aae aah aai aap aas ab- aba abb abc abe abh abi abp abs ac- aca acb acc ace ach aci acp acs aea aeb aec aee aeh aei aep aes aha ahb ahc ahe ahh ahi ahp ahs ai- aia aib aic aie aih aii aip ais ap- apa apb apc ape aph api app aps as- asa asb asc ase ash asi asp ass b-p baa bab bac bae bah bai bap bas bba bbb bbc bbe bbh bbi bbp bbs bca bcb bcc bce bch bci bcp bcs be- bea beb bec bee beh bei bep bes bha bhb bhc bhe bhh bhi bhp bhs bi- bia bib bic bie bih bii bip bis bpa bpb bpc bpe bph bpi bpp bps bsa bsb bsc bse bsh bsi bsp bss c-- caa cab cac cae cah cai cap cas cba cbb cbc cbe cbh cbi cbp cbs cca ccb ccc cce cch cci ccp ccs ce- cea ceb cec cee ceh cei cep ces ch- cha chb chc che chh chi chp chs ci- cia cib cic cie cih cii cip cis cpa cpb cpc cpe cph cpi cpp cps csa csb csc cse csh csi csp css eaa eab eac eae eah eai eap eas eba ebb ebc ebe ebh ebi ebp ebs ec- eca ecb ecc ece ech eci ecs eea eeb eec eee eep ees eha ehb ehc ehe ehh ehi ehp ehs eia eib eic eie eii eip eis ep- epa epb epc epe eph epi epp eps es- esa esb esc ese esh esi esp ess h-i haa hab hac hae hah hai hap has hba hbb hbc hbe hbh hbi hbp hbs hca hcb hcc hce hch hci hcp hcs he- hea heb hec hee heh hei hep hes hha hhb hhc hhe hhh hhi hhp hhs hia hib hic hie hih hii hip his hpa hpb hpc hpe hph hpi hpp hps hsa hsb hsc hse hsh hsi hsp hss ia- iaa iab iac iae iah iai iap ias iba ibb ibc ibe ibh ibi ibp ibs ica icb icc ice ich ici icp ics ie- iea iec iee iei iep ies iha ihb ihc ihe ihh ihi ihp ihs iia iib iic iie iih iii iip iis ipa ipb ipc ipe ipi ipp ips is- isa isb isc ise ish isi isp iss p-p paa pab pac pae pah pai pap pas pba pbb pbc pbe pbi pbp pbs pca pcb pcc pce pch pci pcp pcs pea peb pec pee peh pei pep pes pha phb phc phe phi php phs pia pib pic pie pih pii pip pis ppa ppb ppc ppe pph ppi ppp pps ps- psa psb psc pse psh psi psp pss saa sab sac sae sah sai sap sas sba sbb sbc sbe sbh sbi sbp sbs sca scb scc sce sch sci scp scs se- sea seb sec see seh sei sep ses sh- sha shb shc she shh shi shp shs sia sib sic sie sih sii sip sis spa spb spc spe sph spi spp sps ss- ssa ssb ssc sse ssh ssi ssp sss