-ic a-a a-c a-i aaa aac aae aaf aah aai aao aap aas ac- aca acc ace acf ach aci aco acp acs aea aec aee aef aeh aei aeo aep aes af- afa afc afe aff afh afi afo afp afs aha ahc ahe ahf ahh ahi aho ahp ahs ai- aia aic aie aif aih aii aio aip ais aoa aoc aoe aof aoh aoi aoo aop aos ap- apa apc ape apf aph api apo app aps as- asa asc ase asf ash asi aso asp ass c-- caa cac cae caf cah cai cao cap cas cca ccc cce ccf cch cci cco ccp ccs ce- cea cec cee cef ceh cei ceo cep ces cfa cfc cfe cff cfh cfi cfo cfp cfs ch- cha chc che chf chh chi cho chp chs ci- cia cic cie cif cih cii cio cip cis co- coa coc coe cof coh coi coo cop cos cpa cpc cpe cpf cph cpi cpo cpp cps csa csc cse csf csh csi cso csp css eaa eac eae eaf eah eai eao eap eas ec- eca ecc ece ecf ech eci eco ecs eea eec eee eef eeo eep ees ef- efa efc efe eff efh efi efo efp efs eha ehc ehe ehf ehh ehi eho ehp ehs eia eic eie eif eii eio eip eis eo- eoa eoc eoe eof eoh eoi eoo eop eos ep- epa epc epe epf eph epi epo epp eps es- esa esc ese esf esh esi eso esp ess faa fac fae faf fah fai fao fap fas fca fcc fce fcf fci fco fcp fcs fea fec fee fef feh fei feo fep fes ffa ffc ffe fff ffh ffi ffo ffp ffs fha fhc fhe fhf fhh fhi fho fhp fhs fia fic fie fif fih fii fip fis foa foc foe fof foh foi foo fop fos fpa fpc fpe fph fpi fpo fpp fps fsa fsc fse fsf fsh fsi fso fsp fss h-i haa hac hae haf hah hai hao hap has hca hcc hce hcf hch hci hco hcp hcs he- hea hec hee hef heh hei heo hep hes hfa hfc hfe hff hfh hfi hfo hfp hfs hha hhc hhe hhf hhh hhi hho hhp hhs hia hic hie hif hih hii hio hip his hoa hoc hoe hof hoh hoi hoo hop hos hpa hpc hpe hpf hph hpi hpo hpp hps hsa hsc hse hsf hsh hsi hsp hss i-f ia- iaa iac iae iaf iah iai iao iap ias ica icc ice icf ich ici ico icp ics ie- iea iec iee ief iei iep ies ifa ifc ife iff ifi ifo ifp ifs iha ihc ihe ihf ihh ihi iho ihp ihs iia iic iie iif iih iii iio iip iis io- ioa ioc ioe iof ioh ioi ioo iop ios ipa ipc ipe ipf ipi ipo ipp ips is- isa isc ise isf ish isi iso isp iss o-i oaa oac oae oaf oah oai oao oap oas oc- oca occ ocf och oci oco ocp ocs oea oec oee oef oeh oei oeo oep oes of- ofa ofc ofe off ofi ofo ofp ofs oha ohc ohe ohf ohh ohi oho ohp ohs oia oic oie oif oii oio oip ois oo- ooa ooc oof ooh ooi ooo oop oos op- opa opc ope opf oph opi opo opp ops os- osa osc ose osf osh osi oso osp oss p-p paa pac pae paf pah pai pao pap pas pca pcc pce pcf pch pci pco pcp pcs pea pec pee pef peh pei peo pep pes pfa pfc pfe pff pfi pfo pfp pfs pha phc phe phf phi pho php phs pia pic pie pif pih pii pio pip pis poa poc poe pof poh poi poo pop pos ppa ppc ppe ppf pph ppi ppo ppp pps ps- psa psc pse psf psh psi pso psp pss saa sac sae saf sah sai sao sap sas sca scc sce scf sch sci sco scp scs se- sea sec see sef seh sei seo sep ses sfa sfc sfe sff sfh sfi sfo sfp sfs sh- sha shc she shf shh shi sho shp shs sia sic sie sif sih sii sio sip sis soa soc soe sof soh soi soo sop sos spa spc spe spf sph spi spo spp sps ss- ssa ssc sse ssf ssh ssi sso ssp sss