-ic a-a a-c a-i aaa aac aaf aai aan aao aar ac- aca acc acf aci acn aco acr af- afa afc aff afi afn afo afr ai- aia aic aif aii ain aio air an- ana anc anf ani ann ano anr aoa aoc aof aoi aon aoo aor ar- ara arc arf ari arn aro arr c-- caa cac caf cai can cao car cca ccc ccf cci ccn cco ccr cfa cfc cff cfi cfn cfo cfr ci- cia cic cif cii cin cio cir cn- cna cnc cnf cni cnn cno cnr co- coa coc cof coi con coo cor cra crc crf cri crn cro crr faa fac faf fai fan fao far fca fcc fcf fci fcn fco fcr ffa ffc fff ffi ffn ffo ffr fia fic fif fii fin fir fna fnc fnf fni fnn fnr foa foc fof foi fon foo for fra frc frf fri frn fro frr i-f ia- iaa iac iaf iai ian iao iar ica icc icf ici icn ico icr ifa ifc iff ifi ifn ifo ifr iia iic iif iii iin iio iir in- ina inc inf ini inn ino inr io- ioa ioc iof ioi ion ioo ior ir- ira irc irf iri irn iro irr n-i naa nac naf nai nan nao nar nca ncc ncf nci ncn nco ncr nfa nfc nff nfi nfn nfo nfr nia nic nif nii nin nio nir nna nnc nnf nni nnn nno no- noa noc nof noi non noo nor nra nrc nrf nri nrn nro nrr o-i oaa oac oaf oai oan oao oar oc- oca occ ocf oci ocn oco ocr of- ofa ofc off ofi ofn ofo ofr oia oic oif oii oin oio oir on- ona onc onf oni onn ono onr oo- ooa ooc oof ooi oon ooo oor or- ora orc orf ori orn oro orr ra- raa rac raf rai ran rao rar rca rcc rcf rci rcn rco rcr rfa rfc rff rfi rfn rfo rfr ria ric rif rii rin rio rir rna rnc rni rnn rno rnr roa roc rof roi ron roo ror rra rrc rrf rri rrn rrr