-al -ic -ol a-a a-c a-i aaa aac aae aaf aai aal aao aax ac- aca acc ace acf aci acl aco acx aea aec aee aef aei ael aeo aex af- afa afc afe aff afi afl afo afx ai- aia aic aie aif aii ail aio aix al- ala alc ale alf ali all alo alx aoa aoc aoe aof aoi aol aoo aox ax- axa axe axi axl axo axx c-- caa cac cae caf cai cal cao cax cca ccc cce ccf cci ccl cco ccx ce- cea cec cee cef cei cel ceo cex cfa cfc cfe cff cfi cfl cfo cfx ci- cia cic cie cif cii cil cio cix cl- cla clc cle clf cli cll clo clx co- coa coc coe cof coi col coo cox cxc cxf cxi cxl cxo cxx eaa eac eae eaf eai eal eao eax ec- eca ecc ece ecf eci ecl eco ecx eea eec eee eef eel eeo eex ef- efa efc efe eff efi efl efo efx eia eic eie eif eii eil eio eix ela elc ele elf eli ell elo elx eo- eoa eoc eoe eof eoi eol eoo ex- exa exc exe exi exl exo exx faa fac fae faf fai fal fao fax fca fcc fce fcf fci fcl fco fcx fea fec fee fef fei fel feo fex ffa ffc ffe fff ffi ffl ffo ffx fia fic fie fif fii fil fix fla flc fle flf fli fll flo flx foa foc foe fof foi fol foo fox fxe fxi fxx i-f ia- iaa iac iae iaf iai ial iao ica icc ice icf ici icl ico ie- iea iec iee ief iei iel iex ifa ifc ife iff ifi ifl ifo ifx iia iic iie iif iii iil iio iix il- ila ilc ile ilf ili ill ilo ilx io- ioa ioc ioe iof ioi iol ioo ixc ixe ixi ixl la- laa lac lae laf lai lal lao lax lca lcc lce lcf lci lcl lco lcx lea lec lee lef lei lel leo lex lfa lfc lfe lff lfi lfl lfo lfx lia lic lie lif lii lil lio lix lla llc lle llf lli lll llo loa loc loe lof loi lol loo lox lxc lxi lxo lxx o-i oaa oac oae oaf oai oal oao oax oc- oca occ ocf oci ocl oco ocx oea oec oee oef oei oel oeo oex of- ofa ofc ofe off ofi ofl ofo ofx oia oic oie oif oii oil oio ola olc ole olf oli oll olo oo- ooa ooc oof ooi ool ooo oox ox- oxa oxc oxf oxi oxo oxx xaa xac xaf xal xcf xci xcl xcx xee xel xex xfa xfe xfl xfx xia xic xie xii xio xix xla xlf xli xoa xoc xof xoi xoo xox xxi xxl xxo xxx