-ic a-a a-b a-c a-i aaa aab aac aai aan aao aaw ab- aba abb abc abi abn abo abw ac- aca acb acc aci acn aco acw ai- aia aib aic aii ain aio aiw an- ana anb anc ani ann ano aoa aob aoc aoi aon aoo aow aw- awa awb awc awi awn awo aww baa bab bac bai ban bao baw bba bbb bbc bbi bbn bbo bbw bca bcb bcc bci bcn bco bi- bia bib bic bii bin bio biw bna bnb bnc bni bnn bno bnw boa bob boc boi bon boo bow bwa bwb bwc bwi bwo c-- caa cab cac cai can cao caw cba cbb cbc cbi cbn cbo cbw cca ccb ccc cci ccn cco ccw ci- cia cib cic cii cin cio ciw cn- cna cnb cnc cni cnn cno cnw co- coa cob coc coi con coo cow cw- cwa cwb cwc cwi cwn cwo ia- iaa iab iac iai ian iao iaw iba ibb ibc ibi ibn ibo ibw ica icb icc ici icn ico icw iia iib iic iii iin iio iiw in- ina inb inc ini inn ino io- ioa iob ioc ioi ion ioo iow iwa iwb iwc iwi iwo iww n-i naa nab nac nai nan nao naw nba nbb nbc nbi nbn nbo nbw nca ncb ncc nci ncn nco ncw nia nib nic nii nin nio nna nnb nnc nni nnn nno nnw no- noa nob noc noi non noo now nwa nwb nwc nwi nwn nwo o-i oaa oab oac oai oan oao oaw ob- oba obb obc obi obn obo obw oc- oca ocb occ oci ocn oco ocw oia oib oic oii oin oio on- ona onb onc oni onn ono oo- ooa oob ooc ooi oon ooo oow owa owb owc owi own owo oww waa wab wac wai wan wao waw wba wbb wbc wbi wbn wbo wbw wca wcb wcc wci wcn wco wcw wia wib wic wii win wn- wna wnc wnn wno wnw woa wob woc woi won woo wow wwa wwc wwi wwn wwo www