-er -ic c-- ccc cce ccg cci ccn cco ccr ccz ce- cec cee ceg cei cen ceo cer cez cgc cge cgg cgi cgn cgo cgr ci- cic cie cig cii cin cio cir cn- cnc cne cng cni cnn cno cnr co- coc coe cog coi con coo cor coz crc cre crg cri crn cro crr crz cz- czc cze czo ec- ecc ece ecg eci ecn eco ecr eec eee eeg een eeo eer egc ege egg egi egn ego egr eic eie eig eii ein eio eir en- enc ene eng eni enn eno enr enz eo- eoc eoe eog eoi eon eoo eor erc ere erg eri ern ero err erz eze ezo ezr ezz gcc gce gcg gci gcn gco gcr ge- gec gee geg gei gen geo ger gez ggc ggg ggi ggn ggo ggr ggz gic gie gig gii gin gio gir giz gnc gne gni gnn gno gnr goc goe gog goi gon goo gor goz grc gre grg gri grn gro grr gzo gzr icc ice icg ici icn ico icr icz ie- iec iee ieg iei ien ier igc ige igg igi ign igo igr iic iie iii iin iio iir in- inc ine ing ini inn ino inr io- ioc ioe iog ioi ion ioo ior ir- irc ire irg iri irn iro irr ize izi izo izz n-i ncc nce ncg nci ncn nco ncr ne- nec nee neg nei nen neo ner nez ngc nge ngg ngi ngn ngo nic nie nig nii nin nio nir niz nnc nne nng nni nnn nno nnz no- noc noe nog noi non noo nor noz nrc nre nrg nri nrn nro nrr nrz nze nzg nzi nzo nzz o-i oc- occ ocg oci ocn oco ocr ocz oec oee oeg oei oen oeo oer ogc oge ogg ogi ogn ogo oic oie oii oin oio oir oiz on- onc one ong oni onn ono onr oo- ooc oog ooi oon ooo oor or- orc ore org ori orn oro orr orz oze ozo ozz rcc rce rcg rci rcn rco rcr re- rec ree reg rei ren reo rer rez rgc rge rgg rgi rgn rgo rgr ric rie rig rii rin rio rir riz rnc rng rni rnn rno rnr rnz roc roe rog roi ron roo ror roz rrc rrg rri rrn rrr rze rzo z-g zce zco zec zee zen zeo zer zez zgg zgi zie zig zin zio zir ziz znc zne znn zno zo- zoc zoe zog zoi zon zoo zor zro zzr zzz