-ic a-a a-b a-c a-i aaa aab aac aad aai aan aao aap aar aas ab- aba abb abc abd abi abn abo abp abr abs ac- aca acb acc acd aci acn aco acp acr acs ad- ada adb adc add adi adn ado adp adr ads ai- aia aib aic aid aii ain aio aip air ais an- ana anb anc and ani ann ano anp anr ans aoa aob aoc aod aoi aon aoo aop aor aos ap- apa apb apc apd api apn apo app apr aps ar- ara arb arc ard ari arn aro arp arr ars as- asa asb asc asd asi asn aso asp asr ass b-p baa bab bac bad bai ban bao bap bar bas bba bbb bbc bbd bbi bbn bbo bbp bbr bbs bca bcb bcc bcd bci bcn bco bcp bcr bcs bda bdb bdc bdd bdi bdo bdp bdr bds bi- bia bib bic bid bii bin bio bip bir bis bna bnb bnc bnd bni bnn bno bnp bnr bns boa bob boc bod boi bon boo bop bor bos bpa bpb bpc bpd bpi bpn bpo bpp bpr bps bra brb brd bri brn bro brp brr brs bsa bsb bsc bsd bsi bsn bso bsp bsr bss c-- caa cab cac cad cai can cao cap car cas cba cbb cbc cbd cbi cbn cbo cbp cbr cbs cca ccb ccc ccd cci ccn cco ccp ccr ccs cda cdb cdc cdd cdi cdn cdo cdp cdr cds ci- cia cib cic cid cii cin cio cip cir cis cn- cna cnb cnc cnd cni cnn cno cnp cnr cns co- coa cob coc cod coi con coo cop cor cos cpa cpb cpc cpd cpi cpn cpo cpp cpr cps cra crb crc crd cri crn cro crp crr crs csa csb csc csd csi csn cso csp csr css daa dab dac dad dai dan dao dap dar das dba dbb dbc dbd dbi dbn dbo dbp dbr dbs dca dcb dcc dcd dci dcn dco dcp dcr dcs dda ddb ddc ddd ddi ddn ddo ddp ddr dds di- dia dib dic did dii din dio dip dir dis dna dnb dnc dnd dni dnn dno dnp dnr dns doa dob doc dod doi don doo dop dor dos dpa dpb dpc dpd dpi dpn dpo dpp dpr dps dra drb drc drd dri drn dro drp drr drs dsa dsb dsc dsd dsi dsn dso dsp dsr dss i-d ia- iaa iab iac iad iai ian iao iap iar ias iba ibb ibc ibd ibi ibn ibo ibp ibr ibs ica icb icc icd ici icn ico icp icr ics ida idb idc idd idi idn ido idp idr ids iia iib iic iid iii iin iio iip iir iis in- ina inb inc ind ini inn ino inp inr ins io- ioa iob ioc iod ioi ion ioo iop ior ios ipa ipb ipc ipd ipi ipn ipo ipp ipr ips ir- ira irb irc ird iri irn iro irp irr irs is- isa isb isc isd isi isn iso isp isr iss n-i naa nab nac nad nai nan nao nap nar nas nba nbb nbc nbd nbi nbn nbo nbp nbr nbs nca ncb ncc ncd nci ncn nco ncp ncr ncs nda ndb ndc ndd ndi ndn ndo ndp ndr nds nia nib nic nid nii nin nio nip nir nis nna nnb nnc nni nnn nno nnp nns no- noa nob noc nod noi non noo nop nor nos npa npb npc npd npi npn npo npp npr nps nra nrb nrc nrd nri nrn nro nrp nrr nrs nsa nsb nsc nsd nsi nsn nso nsp nsr nss o-i oaa oab oac oad oai oan oao oap oar oas ob- oba obb obc obd obi obn obo obp obr obs oc- oca ocb occ ocd oci ocn oco ocp ocr ocs oda odb odc odd odi odn odo odp odr ods oia oib oic oid oii oin oio oip oir ois on- ona onb onc ond oni onn ono onp onr ons oo- ooa oob ooc ood ooi oon ooo oop oor oos op- opa opb opc opd opi opn opo opp opr ops or- ora orb orc ord ori orn oro orp orr ors os- osa osb osc osd osi osn oso osp osr oss p-p paa pab pac pad pai pan pao pap par pas pba pbb pbc pbd pbi pbn pbo pbp pbr pbs pca pcb pcc pcd pci pcn pco pcp pcr pcs pda pdb pdc pdd pdi pdn pdo pdp pdr pds pia pib pic pid pii pin pio pip pir pis pn- pna pnb pnc pnd pni pnn pno pnp pnr pns poa pob poc pod poi pon poo pop por pos ppa ppb ppc ppd ppi ppn ppo ppp ppr pps pra prb prc prd pri prn pro prp prr prs ps- psa psb psc psd psi psn pso psp psr pss ra- raa rab rac rad rai ran rao rap rar ras rba rbb rbc rbd rbi rbn rbo rbp rbr rbs rca rcb rcc rcd rci rcn rco rcp rcr rcs rda rdb rdc rdd rdi rdn rdo rdp rdr rds ria rib ric rid rii rin rio rip rir ris rna rnb rnc rnd rni rnn rno rnp rnr rns roa rob roc rod roi ron roo rop ror ros rpa rpb rpc rpd rpi rpn rpo rpp rpr rps rra rrb rrc rrd rri rrn rrp rrr rrs rsa rsb rsc rsd rsi rsn rso rsp rsr rss saa sab sac sad sai san sao sap sar sas sba sbb sbc sbd sbi sbn sbo sbp sbr sbs sca scb scc scd sci scn sco scp scr scs sda sdb sdc sdd sdi sdn sdo sdp sdr sds sia sib sic sid sii sin sio sip sir sis sna snb snc snd sni snn sno snp snr sns soa sob soc sod soi