-ic a-a a-b a-c a-i aaa aab aac aaf aai aak aan aao aap aas ab- aba abb abc abf abi abk abn abo abp abs ac- aca acb acc acf aci ack acn aco acp acs af- afa afb afc aff afi afk afn afo afp afs ai- aia aib aic aif aii aik ain aio aip ais aka akb akc aki akk akn ako akp aks an- ana anb anc anf ani ank ann ano anp ans aoa aob aoc aof aoi aok aon aoo aop aos ap- apa apb apc apf api apk apn apo app aps as- asa asb asc asf asi ask asn aso asp ass b-p baa bab bac baf bai bak ban bao bap bas bba bbb bbc bbf bbi bbk bbn bbo bbp bbs bca bcb bcc bcf bci bck bcn bco bcp bcs bfa bfb bfc bff bfi bfn bfo bfp bfs bi- bia bib bic bif bii bik bin bio bip bis bka bkb bkc bkf bkk bkn bko bkp bks bna bnb bnc bnf bni bnk bnn bno bnp bns boa bob boc bof boi bok bon boo bop bos bpa bpb bpc bpf bpi bpn bpo bpp bps bsa bsb bsc bsf bsi bsk bsn bso bsp bss c-- caa cab cac caf cai cak can cao cap cas cba cbb cbc cbf cbi cbk cbn cbo cbp cbs cca ccb ccc ccf cci cck ccn cco ccp ccs cfa cfb cfc cff cfi cfk cfn cfo cfp cfs ci- cia cib cic cif cii cik cin cio cip cis cka ckb ckc cki cko cks cn- cna cnb cnc cnf cni cnn cno cnp cns co- coa cob coc cof coi cok con coo cop cos cpa cpb cpc cpf cpi cpk cpn cpo cpp cps csa csb csc csf csi csk csn cso csp css faa fab fac faf fai fak fan fao fap fas fba fbb fbc fbf fbi fbk fbn fbo fbp fbs fca fcb fcc fcf fci fck fcn fco fcp fcs ffa ffc fff ffi ffk ffn ffo ffp ffs fia fib fic fif fii fik fin fip fis fka fkb fkc fkf fki fkk fkp fna fnb fnc fnf fni fnk fnn fnp fns foa fob foc fof foi fok fon foo fop fos fpa fpb fpc fpi fpk fpn fpo fpp fps fsa fsb fsc fsf fsi fsk fsn fso fsp fss i-f ia- iaa iab iac iaf iai ian iao iap ias iba ibb ibc ibf ibi ibk ibn ibo ibp ibs ica icb icc icf ici ick icn ico icp ics ifa ifb ifc iff ifi ifn ifo ifp ifs iia iib iic iif iii iin iio iip iis ika ikb ikc ikf iki ikk iko iks in- ina inb inc inf ini ink inn ino inp ins io- ioa iob ioc iof ioi ion ioo iop ios ipa ipb ipc ipf ipi ipn ipo ipp ips is- isa isb isc isf isi isk isn iso isp iss ka- kaa kab kac kaf kai kak kan kao kap kas kba kbb kbc kbf kbi kbk kbn kbo kbp kbs kca kcb kcc kci kck kcn kcp kcs kfa kfc kff kfi kfo kfs kia kib kic kif kii kik kin kio kip kis kkb kkc kki kkk kkn kkp kks kn- kna knc knf kni knk knn kno knp koa kob koc kof koi kok kon koo kop kos kpa kpc kpf kpi kpk kpn kpo kpp kps ksa ksb ksc ksf ksi ksk ksn kso ksp kss n-i naa nab nac naf nai nak nan nao nap nas nba nbb nbc nbf nbi nbk nbn nbo nbp nbs nca ncb ncc ncf nci nck ncn nco ncp ncs nfa nfb nfc nff nfi nfk nfn nfo nfp nfs nia nib nic nif nii nik nin nio nip nis nka nkc nkf nki nkk nkn nko nkp nks nna nnb nnc nnf nni nnk nnn nno nnp nns no- noa nob noc nof noi nok non noo nop nos npa npb npc npf npi npn npo npp nps nsa nsb nsc nsf nsi nsk nsn nso nsp nss o-i oaa oab oac oaf oai oak oan oao oap oas ob- oba obb obc obf obi obk obn obo obp obs oc- oca ocb occ ocf oci ock ocn oco ocp ocs of- ofa ofb ofc off ofi ofn ofo ofp ofs oia oib oic oif oii oik oin oio oip ois oka okb okc oki okk oko okp oks on- ona onb onc onf oni onk onn ono onp ons oo- ooa oob ooc oof ooi ook oon ooo oop oos op- opa opb opc opf opi opk opn opo opp ops os- osa osb osc osf osi osk osn oso osp oss p-p paa pab pac paf pai pak pan pao pap pas pba pbb pbc pbf pbi pbk pbn pbo pbp pbs pca pcb pcc pcf pci pck pcn pco pcp pcs pfa pfb pfc pff pfi pfk pfn pfo pfp pfs pia pib pic pif pii pik pin pio pip pis pka pkb pkc pkf pki pkn pko pkp pks pn- pna pnb pnc pnf pni pnk pnn pno pnp pns poa pob poc pof poi pok pon poo pop pos ppa ppb ppc ppf ppi ppk ppn ppo ppp pps ps- psa psb psc psf psi psk psn pso psp pss saa sab sac saf sai sak san sao sap sas sba sbb sbc sbf sbi sbk sbn sbo sbp sbs sca scb scc scf sci sck scn sco scp scs sfa sfb sfc sff sfi sfk sfn sfo sfp sfs sia sib sic sif sii sik sin sio sip sis sk- ska skb skc skf ski skk sko skp sks sna snb snc snf sni snk snn sno snp sns soa sob soc sof soi sok son soo sop sos spa spb spc spf spi spk spn spo spp sps ss- ssa ssb ssc ssf ssi ssk ssn sso ssp sss

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