c-- ccc cce ccg ccn cco ccz ce- cec cee ceg cen ceo cez cgc cge cgg cgn cgo cn- cnc cne cng cnn cno co- coc coe cog con coo coz cz- czc cze czo ec- ecc ece ecg ecn eco eec eee eeg een eeo egc ege egg egn ego en- enc ene eng enn eno enz eo- eoc eoe eog eon eoo eze ezo ezz gcc gce gcg gcn gco ge- gec gee geg gen geo gez ggc ggg ggn ggo ggz gnc gne gnn gno goc goe gog gon goo goz gzo ncc nce ncg ncn nco ne- nec nee neg nen neo nez ngc nge ngg ngn ngo nnc nne nng nnn nno nnz no- noc noe nog non noo noz nze nzg nzo nzz oc- occ ocg ocn oco ocz oec oee oeg oen oeo ogc oge ogg ogn ogo on- onc one ong onn ono oo- ooc oog oon ooo oze ozo ozz z-g zce zco zec zee zen zeo zez zgg znc zne znn zno zo- zoc zoe zog zon zoo zzz