c-- ccc ccd cce ccg ccn cco cdc cdd cde cdg cdn cdo ce- cec ced cee ceg cen ceo cgc cgd cge cgg cgn cgo cn- cnc cnd cne cng cnn cno co- coc cod coe cog con coo dcc dcd dce dcg dcn dco ddc ddd dde ddg ddn ddo de- dec ded dee deg den deo dgc dgd dge dgg dgn dnc dnd dne dng dnn dno doc dod doe dog don doo ec- ecc ecd ece ecg ecn eco ed- edc edd ede edg edn edo eec eed eee eeg een eeo egc egd ege egg egn ego en- enc end ene eng enn eno eo- eoc eod eoe eog eon eoo g-d gcc gcd gce gcg gcn gco gdc gdd gde gdn gdo ge- gec ged gee geg gen geo ggc ggd ggg ggn ggo gnc gnd gne gnn gno goc god goe gog gon goo ncc ncd nce ncg ncn nco ndc ndd nde ndg ndn ndo ne- nec ned nee neg nen neo ngc ngd nge ngg ngn ngo nnc nne nng nnn nno no- noc nod noe nog non noo oc- occ ocd ocg ocn oco odc odd ode odg odn odo oec oed oee oeg oen oeo ogc ogd oge ogg ogn ogo on- onc ond one ong onn ono oo- ooc ood oog oon ooo