-ic a-a a-c a-i aaa aac aad aaf aai aan aao aas ac- aca acc acd acf aci acn aco acs ad- ada adc add adf adi adn ado ads af- afa afc afd aff afi afn afo afs ai- aia aic aid aif aii ain aio ais an- ana anc and anf ani ann ano ans aoa aoc aod aof aoi aon aoo aos as- asa asc asd asf asi asn aso ass c-- caa cac cad caf cai can cao cas cca ccc ccd ccf cci ccn cco ccs cda cdc cdd cdf cdi cdn cdo cds cfa cfc cfd cff cfi cfn cfo cfs ci- cia cic cid cif cii cin cio cis cn- cna cnc cnd cnf cni cnn cno cns co- coa coc cod cof coi con coo cos csa csc csd csf csi csn cso css daa dac dad daf dai dan dao das dca dcc dcd dcf dci dcn dco dcs dda ddc ddd ddf ddi ddn ddo dds dfa dfc dfd dff dfi dfn dfo dfs di- dia dic did dif dii din dio dis dna dnc dnd dnf dni dnn dno dns doa doc dod dof doi don doo dos dsa dsc dsd dsf dsi dsn dso dss faa fac fad faf fai fan fao fas fca fcc fcd fcf fci fcn fco fcs fda fdc fdd fdf fdi fdn fdo fds ffa ffc ffd fff ffi ffn ffo ffs fia fic fid fif fii fin fis fna fnc fnd fnf fni fnn fns foa foc fof foi fon foo fos fsa fsc fsd fsf fsi fsn fso fss i-d i-f ia- iaa iac iad iaf iai ian iao ias ica icc icd icf ici icn ico ics ida idc idd idf idi idn ido ids ifa ifc ifd iff ifi ifn ifo ifs iia iic iid iif iii iin iio iis in- ina inc ind inf ini inn ino ins io- ioa ioc iod iof ioi ion ioo ios is- isa isc isd isf isi isn iso iss n-i naa nac nad naf nai nan nao nas nca ncc ncd ncf nci ncn nco ncs nda ndc ndd ndf ndi ndn ndo nds nfa nfc nfd nff nfi nfn nfo nfs nia nic nid nif nii nin nio nis nna nnc nnf nni nnn nno nns no- noa noc nod nof noi non noo nos nsa nsc nsd nsf nsi nsn nso nss o-i oaa oac oad oaf oai oan oao oas oc- oca occ ocd ocf oci ocn oco ocs oda odc odd odf odi odn odo ods of- ofa ofc ofd off ofi ofn ofo ofs oia oic oid oif oii oin oio ois on- ona onc ond onf oni onn ono ons oo- ooa ooc ood oof ooi oon ooo oos os- osa osc osd osf osi osn oso oss saa sac sad saf sai san sao sas sca scc scd scf sci scn sco scs sda sdc sdd sdf sdi sdn sdo sds sfa sfc sfd sff sfi sfn sfo sfs sia sic sid sif sii sin sio sis sna snc snd snf sni snn sno sns soa soc sod sof soi son soo sos ss- ssa ssc ssd ssf ssi ssn sso sss