-ic a-a a-b a-c a-i aaa aab aac aah aai aan aao aap aar aas ab- aba abb abc abh abi abn abo abp abr abs ac- aca acb acc ach aci acn aco acp acr acs aha ahb ahc ahh ahi ahn aho ahp ahr ahs ai- aia aib aic aih aii ain aio aip air ais an- ana anb anc anh ani ann ano anp anr ans aoa aob aoc aoh aoi aon aoo aop aor aos ap- apa apb apc aph api apn apo app apr aps ar- ara arb arc arh ari arn aro arp arr ars as- asa asb asc ash asi asn aso asp asr ass b-p baa bab bac bah bai ban bao bap bar bas bba bbb bbc bbh bbi bbn bbo bbp bbr bbs bca bcb bcc bch bci bcn bco bcp bcr bcs bha bhb bhc bhh bhi bho bhp bhr bhs bi- bia bib bic bih bii bin bio bip bir bis bna bnb bnc bni bnn bno bnp bnr bns boa bob boc boh boi bon boo bop bor bos bpa bpb bpc bph bpi bpn bpo bpp bpr bps bra brb brh bri brn bro brp brr brs bsa bsb bsc bsh bsi bsn bso bsp bsr bss c-- caa cab cac cah cai can cao cap car cas cba cbb cbc cbh cbi cbn cbo cbp cbr cbs cca ccb ccc cch cci ccn cco ccp ccr ccs ch- cha chb chc chh chi chn cho chp chr chs ci- cia cib cic cih cii cin cio cip cir cis cn- cna cnb cnc cnh cni cnn cno cnp cnr cns co- coa cob coc coh coi con coo cop cor cos cpa cpb cpc cph cpi cpn cpo cpp cpr cps cra crb crc crh cri crn cro crp crr crs csa csb csc csh csi csn cso csp csr css h-i haa hab hac hah hai han hao hap har has hba hbb hbc hbh hbi hbn hbo hbp hbr hbs hca hcb hcc hch hci hcn hco hcp hcr hcs hha hhb hhc hhh hhi hhn hho hhp hhr hhs hia hib hic hih hii hin hio hip hir his hna hnb hnc hnh hnn hno hns hoa hob hoc hoh hoi hon hoo hop hor hos hpa hpb hpc hph hpi hpn hpo hpp hpr hps hr- hra hrb hrc hrh hri hrn hro hrp hrr hrs hsa hsb hsc hsh hsi hsn hsp hsr hss ia- iaa iab iac iah iai ian iao iap iar ias iba ibb ibc ibh ibi ibn ibo ibp ibr ibs ica icb icc ich ici icn ico icp icr ics iha ihb ihc ihh ihi ihn iho ihp ihr ihs iia iib iic iih iii iin iio iip iir iis in- ina inb inc inh ini inn ino inp inr ins io- ioa iob ioc ioh ioi ion ioo iop ior ios ipa ipb ipc ipi ipn ipo ipp ipr ips ir- ira irb irc iri irn iro irp irr irs is- isa isb isc ish isi isn iso isp isr iss n-i naa nab nac nah nai nan nao nap nar nas nba nbb nbc nbi nbn nbo nbp nbr nbs nca ncb ncc nch nci ncn nco ncp ncr ncs nha nhb nhc nhh nhi nhn nhp nhr nhs nia nib nic nih nii nin nio nip nir nis nna nnb nnc nnh nni nnn nno nnp nns no- noa nob noc noh noi non noo nop nor nos npa npb npc nph npi npn npo npp npr nps nra nrb nrc nri nrn nro nrp nrr nrs nsa nsb nsc nsh nsi nsn nso nsp nsr nss o-i oaa oab oac oah oai oan oao oap oar oas ob- oba obb obc obh obi obn obo obp obr obs oc- oca ocb occ och oci ocn oco ocp ocr ocs oha ohc ohh ohi ohn oho ohp ohr ohs oia oib oic oii oin oio oip oir ois on- ona onb onc onh oni onn ono onp onr ons oo- ooa oob ooc ooh ooi oon ooo oop oor oos op- opa opb opc oph opi opn opo opp opr ops or- ora orb orc orh ori orn oro orp orr ors os- osa osb osc osh osi osn oso osp osr oss p-p paa pab pac pah pai pan pao pap par pas pba pbb pbc pbi pbn pbo pbp pbr pbs pca pcb pcc pch pci pcn pco pcp pcr pcs pha phb phc phi phn pho php phr phs pia pib pic pih pii pin pio pip pir pis pn- pna pnb pnc pnh pni pnn pno pnp pnr pns poa pob poc poh poi pon poo pop por pos ppa ppb ppc pph ppi ppn ppo ppp ppr pps pra prb prc prh pri prn pro prp prr prs ps- psa psb psc psh psi psn pso psp psr pss ra- raa rab rac rah rai ran rao rap rar ras rba rbb rbc rbh rbi rbn rbo rbp rbr rbs rca rcb rcc rch rci rcn rco rcp rcr rcs rh- rha rhb rhc rhh rhi rhn rho rhp rhr rhs ria rib ric rih rii rin rio rip rir ris rna rnb rnc rnh rni rnn rno rnp rnr rns roa rob roc roh roi ron roo rop ror ros rpa rpb rpc rph rpi rpn rpo rpp rpr rps rra rrb rrc rrh rri rrn rrp rrr rrs rsa rsb rsc rsh rsi rsn rso rsp rsr rss saa sab sac sah sai san sao sap sar sas sba sbb sbc sbh sbi sbn sbo sbp sbr sbs sca scb scc sch sci scn sco scp scr scs sh- sha shb shc shh shi shn sho shp shr shs sia sib sic sih sii sin sio sip sir sis sna snb snc sni snn sno snp snr sns soa sob soc soh soi son soo sop sor sos spa spb spc sph spi spn spo