-ic a-a a-b a-c a-i aaa aab aac aae aah aai aan aao aap aas ab- aba abb abc abe abh abi abn abo abp abs ac- aca acb acc ace ach aci acn aco acp acs aea aeb aec aee aeh aei aen aeo aep aes aha ahb ahc ahe ahh ahi ahn aho ahp ahs ai- aia aib aic aie aih aii ain aio aip ais an- ana anb anc ane anh ani ann ano anp ans aoa aob aoc aoe aoh aoi aon aoo aop aos ap- apa apb apc ape aph api apn apo app aps as- asa asb asc ase ash asi asn aso asp ass b-p baa bab bac bae bah bai ban bao bap bas bba bbb bbc bbe bbh bbi bbn bbo bbp bbs bca bcb bcc bce bch bci bcn bco bcp bcs be- bea beb bec bee beh bei ben beo bep bes bha bhb bhc bhe bhh bhi bho bhp bhs bi- bia bib bic bie bih bii bin bio bip bis bna bnb bnc bne bni bnn bno bnp bns boa bob boc boe boh boi bon boo bop bos bpa bpb bpc bpe bph bpi bpn bpo bpp bps bsa bsb bsc bse bsh bsi bsn bso bsp bss c-- caa cab cac cae cah cai can cao cap cas cba cbb cbc cbe cbh cbi cbn cbo cbp cbs cca ccb ccc cce cch cci ccn cco ccp ccs ce- cea ceb cec cee ceh cei cen ceo cep ces ch- cha chb chc che chh chi chn cho chp chs ci- cia cib cic cie cih cii cin cio cip cis cn- cna cnb cnc cne cnh cni cnn cno cnp cns co- coa cob coc coe coh coi con coo cop cos cpa cpb cpc cpe cph cpi cpn cpo cpp cps csa csb csc cse csh csi csn cso csp css eaa eab eac eae eah eai ean eao eap eas eba ebb ebc ebe ebh ebi ebn ebo ebp ebs ec- eca ecb ecc ece ech eci ecn eco ecs eea eeb eec eee een eeo eep ees eha ehb ehc ehe ehh ehi ehn eho ehp ehs eia eib eic eie eii ein eio eip eis en- ena enb enc ene enh eni enn eno enp ens eo- eoa eob eoc eoe eoh eoi eon eoo eop eos ep- epa epb epc epe eph epi epn epo epp eps es- esa esb esc ese esh esi esn eso esp ess h-i haa hab hac hae hah hai han hao hap has hba hbb hbc hbe hbh hbi hbn hbo hbp hbs hca hcb hcc hce hch hci hcn hco hcp hcs he- hea heb hec hee heh hei hen heo hep hes hha hhb hhc hhe hhh hhi hhn hho hhp hhs hia hib hic hie hih hii hin hio hip his hna hnb hnc hne hnh hnn hno hns hoa hob hoc hoe hoh hoi hon hoo hop hos hpa hpb hpc hpe hph hpi hpn hpo hpp hps hsa hsb hsc hse hsh hsi hsn hsp hss ia- iaa iab iac iae iah iai ian iao iap ias iba ibb ibc ibe ibh ibi ibn ibo ibp ibs ica icb icc ice ich ici icn ico icp ics ie- iea iec iee iei ien iep ies iha ihb ihc ihe ihh ihi ihn iho ihp ihs iia iib iic iie iih iii iin iio iip iis in- ina inb inc ine inh ini inn ino inp ins io- ioa iob ioc ioe ioh ioi ion ioo iop ios ipa ipb ipc ipe ipi ipn ipo ipp ips is- isa isb isc ise ish isi isn iso isp iss n-i naa nab nac nae nah nai nan nao nap nas nba nbb nbc nbe nbi nbn nbo nbp nbs nca ncb ncc nce nch nci ncn nco ncp ncs ne- nea neb nec nee neh nei nen neo nep nes nha nhb nhc nhe nhh nhi nhn nhp nhs nia nib nic nie nih nii nin nio nip nis nna nnb nnc nne nnh nni nnn nno nnp nns no- noa nob noc noe noh noi non noo nop nos npa npb npc npe nph npi npn npo npp nps nsa nsb nsc nse nsh nsi nsn nso nsp nss o-i oaa oab oac oae oah oai oan oao oap oas ob- oba obb obc obe obh obi obn obo obp obs oc- oca ocb occ och oci ocn oco ocp ocs oea oeb oec oee oeh oei oen oeo oep oes oha ohc ohe ohh ohi ohn oho ohp ohs oia oib oic oie oii oin oio oip ois on- ona onb onc one onh oni onn ono onp ons oo- ooa oob ooc ooh ooi oon ooo oop oos op- opa opb opc ope oph opi opn opo opp ops os- osa osb osc ose osh osi osn oso osp oss p-p paa pab pac pae pah pai pan pao pap pas pba pbb pbc pbe pbi pbn pbo pbp pbs pca pcb pcc pce pch pci pcn pco pcp pcs pea peb pec pee peh pei pen peo pep pes pha phb phc phe phi phn pho php phs pia pib pic pie pih pii pin pio pip pis pn- pna pnb pnc pne pnh pni pnn pno pnp pns poa pob poc poe poh poi pon poo pop pos ppa ppb ppc ppe pph ppi ppn ppo ppp pps ps- psa psb psc pse psh psi psn pso psp pss saa sab sac sae sah sai san sao sap sas sba sbb sbc sbe sbh sbi sbn sbo sbp sbs sca scb scc sce sch sci scn sco scp scs se- sea seb sec see seh sei sen seo sep ses sh- sha shb shc she shh shi shn sho shp shs sia sib sic sie sih sii sin sio sip sis sna snb snc sne sni snn sno snp sns soa sob soc soe soh