-ic a-a a-b a-c a-i aaa aab aac aaf aah aai aan aao aap aar ab- aba abb abc abf abh abi abn abo abp abr ac- aca acb acc acf ach aci acn aco acp acr af- afa afb afc aff afh afi afn afo afp afr aha ahb ahc ahf ahh ahi ahn aho ahp ahr ai- aia aib aic aif aih aii ain aio aip air an- ana anb anc anf anh ani ann ano anp anr aoa aob aoc aof aoh aoi aon aoo aop aor ap- apa apb apc apf aph api apn apo app apr ar- ara arb arc arf arh ari arn aro arp arr b-p baa bab bac baf bah bai ban bao bap bar bba bbb bbc bbf bbh bbi bbn bbo bbp bbr bca bcb bcc bcf bch bci bcn bco bcp bcr bfa bfb bfc bff bfh bfi bfn bfo bfp bfr bha bhb bhc bhf bhh bhi bho bhp bhr bi- bia bib bic bif bih bii bin bio bip bir bna bnb bnc bnf bni bnn bno bnp bnr boa bob boc bof boh boi bon boo bop bor bpa bpb bpc bpf bph bpi bpn bpo bpp bpr bra brb brf brh bri brn bro brp brr c-- caa cab cac caf cah cai can cao cap car cba cbb cbc cbf cbh cbi cbn cbo cbp cbr cca ccb ccc ccf cch cci ccn cco ccp ccr cfa cfb cfc cff cfh cfi cfn cfo cfp cfr ch- cha chb chc chf chh chi chn cho chp chr ci- cia cib cic cif cih cii cin cio cip cir cn- cna cnb cnc cnf cnh cni cnn cno cnp cnr co- coa cob coc cof coh coi con coo cop cor cpa cpb cpc cpf cph cpi cpn cpo cpp cpr cra crb crc crf crh cri crn cro crp crr faa fab fac faf fah fai fan fao fap far fba fbb fbc fbf fbh fbi fbn fbo fbp fbr fca fcb fcc fcf fci fcn fco fcp fcr ffa ffc fff ffh ffi ffn ffo ffp ffr fha fhb fhc fhf fhh fhi fhn fho fhp fhr fia fib fic fif fih fii fin fip fir fna fnb fnc fnf fnh fni fnn fnp fnr foa fob foc fof foh foi fon foo fop for fpa fpb fpc fph fpi fpn fpo fpp fpr fra frb frc frf frh fri frn fro frp frr h-i haa hab hac haf hah hai han hao hap har hba hbb hbc hbf hbh hbi hbn hbo hbp hbr hca hcb hcc hcf hch hci hcn hco hcp hcr hfa hfb hfc hff hfh hfi hfn hfo hfp hfr hha hhb hhc hhf hhh hhi hhn hho hhp hhr hia hib hic hif hih hii hin hio hip hir hna hnb hnc hnf hnh hnn hno hoa hob hoc hof hoh hoi hon hoo hop hor hpa hpb hpc hpf hph hpi hpn hpo hpp hpr hr- hra hrb hrc hrf hrh hri hrn hro hrp hrr i-f ia- iaa iab iac iaf iah iai ian iao iap iar iba ibb ibc ibf ibh ibi ibn ibo ibp ibr ica icb icc icf ich ici icn ico icp icr ifa ifb ifc iff ifi ifn ifo ifp ifr iha ihb ihc ihf ihh ihi ihn iho ihp ihr iia iib iic iif iih iii iin iio iip iir in- ina inb inc inf inh ini inn ino inp inr io- ioa iob ioc iof ioh ioi ion ioo iop ior ipa ipb ipc ipf ipi ipn ipo ipp ipr ir- ira irb irc irf iri irn iro irp irr n-i naa nab nac naf nah nai nan nao nap nar nba nbb nbc nbf nbi nbn nbo nbp nbr nca ncb ncc ncf nch nci ncn nco ncp ncr nfa nfb nfc nff nfi nfn nfo nfp nfr nha nhb nhc nhf nhh nhi nhn nhp nhr nia nib nic nif nih nii nin nio nip nir nna nnb nnc nnf nnh nni nnn nno nnp no- noa nob noc nof noh noi non noo nop nor npa npb npc npf nph npi npn npo npp npr nra nrb nrc nrf nri nrn nro nrp nrr o-i oaa oab oac oaf oah oai oan oao oap oar ob- oba obb obc obf obh obi obn obo obp obr oc- oca ocb occ ocf och oci ocn oco ocp ocr of- ofa ofb ofc off ofi ofn ofo ofp ofr oha ohc ohf ohh ohi ohn oho ohp ohr oia oib oic oif oii oin oio oip oir on- ona onb onc onf onh oni onn ono onp onr oo- ooa oob ooc oof ooh ooi oon ooo oop oor op- opa opb opc opf oph opi opn opo opp opr or- ora orb orc orf orh ori orn oro orp orr p-p paa pab pac paf pah pai pan pao pap par pba pbb pbc pbf pbi pbn pbo pbp pbr pca pcb pcc pcf pch pci pcn pco pcp pcr pfa pfb pfc pff pfi pfn pfo pfp pfr pha phb phc phf phi phn pho php phr pia pib pic pif pih pii pin pio pip pir pn- pna pnb pnc pnf pnh pni pnn pno pnp pnr poa pob poc pof poh poi pon poo pop por ppa ppb ppc ppf pph ppi ppn ppo ppp ppr pra prb prc prf prh pri prn pro prp prr ra- raa rab rac raf rah rai ran rao rap rar rba rbb rbc rbf rbh rbi rbn rbo rbp rbr rca rcb rcc rcf rch rci rcn rco rcp rcr rfa rfb rfc rff rfh rfi rfn rfo rfp rfr rh- rha rhb rhc rhf rhh rhi rhn rho rhp rhr ria rib ric rif rih rii rin rio rip rir rna rnb rnc rnh rni rnn rno rnp rnr roa rob roc rof roh roi ron roo rop ror rpa rpb rpc rpf rph rpi