-ic a-a a-b a-c a-i aaa aab aac aah aai aan aao aap aas ab- aba abb abc abh abi abn abo abp abs ac- aca acb acc ach aci acn aco acp acs aha ahb ahc ahh ahi ahn aho ahp ahs ai- aia aib aic aih aii ain aio aip ais an- ana anb anc anh ani ann ano anp ans aoa aob aoc aoh aoi aon aoo aop aos ap- apa apb apc aph api apn apo app aps as- asa asb asc ash asi asn aso asp ass b-p baa bab bac bah bai ban bao bap bas bba bbb bbc bbh bbi bbn bbo bbp bbs bca bcb bcc bch bci bcn bco bcp bcs bha bhb bhc bhh bhi bho bhp bhs bi- bia bib bic bih bii bin bio bip bis bna bnb bnc bni bnn bno bnp bns boa bob boc boh boi bon boo bop bos bpa bpb bpc bph bpi bpn bpo bpp bps bsa bsb bsc bsh bsi bsn bso bsp bss c-- caa cab cac cah cai can cao cap cas cba cbb cbc cbh cbi cbn cbo cbp cbs cca ccb ccc cch cci ccn cco ccp ccs ch- cha chb chc chh chi chn cho chp chs ci- cia cib cic cih cii cin cio cip cis cn- cna cnb cnc cnh cni cnn cno cnp cns co- coa cob coc coh coi con coo cop cos cpa cpb cpc cph cpi cpn cpo cpp cps csa csb csc csh csi csn cso csp css h-i haa hab hac hah hai han hao hap has hba hbb hbc hbh hbi hbn hbo hbp hbs hca hcb hcc hch hci hcn hco hcp hcs hha hhb hhc hhh hhi hhn hho hhp hhs hia hib hic hih hii hin hio hip his hna hnb hnc hnh hnn hno hns hoa hob hoc hoh hoi hon hoo hop hos hpa hpb hpc hph hpi hpn hpo hpp hps hsa hsb hsc hsh hsi hsn hsp hss ia- iaa iab iac iah iai ian iao iap ias iba ibb ibc ibh ibi ibn ibo ibp ibs ica icb icc ich ici icn ico icp ics iha ihb ihc ihh ihi ihn iho ihp ihs iia iib iic iih iii iin iio iip iis in- ina inb inc inh ini inn ino inp ins io- ioa iob ioc ioh ioi ion ioo iop ios ipa ipb ipc ipi ipn ipo ipp ips is- isa isb isc ish isi isn iso isp iss n-i naa nab nac nah nai nan nao nap nas nba nbb nbc nbi nbn nbo nbp nbs nca ncb ncc nch nci ncn nco ncp ncs nha nhb nhc nhh nhi nhn nhp nhs nia nib nic nih nii nin nio nip nis nna nnb nnc nnh nni nnn nno nnp nns no- noa nob noc noh noi non noo nop nos npa npb npc nph npi npn npo npp nps nsa nsb nsc nsh nsi nsn nso nsp nss o-i oaa oab oac oah oai oan oao oap oas ob- oba obb obc obh obi obn obo obp obs oc- oca ocb occ och oci ocn oco ocp ocs oha ohc ohh ohi ohn oho ohp ohs oia oib oic oii oin oio oip ois on- ona onb onc onh oni onn ono onp ons oo- ooa oob ooc ooh ooi oon ooo oop oos op- opa opb opc oph opi opn opo opp ops os- osa osb osc osh osi osn oso osp oss p-p paa pab pac pah pai pan pao pap pas pba pbb pbc pbi pbn pbo pbp pbs pca pcb pcc pch pci pcn pco pcp pcs pha phb phc phi phn pho php phs pia pib pic pih pii pin pio pip pis pn- pna pnb pnc pnh pni pnn pno pnp pns poa pob poc poh poi pon poo pop pos ppa ppb ppc pph ppi ppn ppo ppp pps ps- psa psb psc psh psi psn pso psp pss saa sab sac sah sai san sao sap sas sba sbb sbc sbh sbi sbn sbo sbp sbs sca scb scc sch sci scn sco scp scs sh- sha shb shc shh shi shn sho shp shs sia sib sic sih sii sin sio sip sis sna snb snc sni snn sno snp sns soa sob soc soh soi son soo sop sos spa spb spc sph spi spn spo spp sps ss- ssa ssb ssc ssh ssi ssn sso ssp sss