-er -ey -ic c-- ccc cce cci ccn cco ccr ccx ce- cec cee cei cen ceo cer cex cey ci- cic cie cii cin cio cir cix cn- cnc cne cni cnn cno cnr cnx cny co- coc coe coi con coo cor cox coy crc cre cri crn cro crr crx cry cxc cxi cxo cxr cxx cyc cye cyn cyo cyr ec- ecc ece eci ecn eco ecr ecx eec eee een eeo eer eex eey eic eie eii ein eio eir eix en- enc ene eni enn eno enr eny eo- eoc eoe eoi eon eoo eor erc ere eri ern ero err ery ex- exc exe exi exo exr exx exy eyc eye eyn eyo eyr icc ice ici icn ico icr icy ie- iec iee iei ien ier iex iey iic iie iii iin iio iir iix in- inc ine ini inn ino inr inx iny io- ioc ioe ioi ion ioo ior ir- irc ire iri irn iro irr irx iry ixc ixe ixi ixn ixy iyc iye iyo iyr iyy n-i ncc nce nci ncn nco ncr ncx ne- nec nee nei nen neo ner nex ney nic nie nii nin nio nir nix nnc nne nni nnn nno no- noc noe noi non noo nor nox noy nrc nre nri nrn nro nrr nrx nry nxc nyc nye nyn nyo nyx nyy o-i oc- occ oci ocn oco ocr ocx oec oee oei oen oeo oer oex oey oic oie oii oin oio oir on- onc one oni onn ono onr onx ony oo- ooc ooi oon ooo oor oox or- orc ore ori orn oro orr orx ory ox- oxc oxi oxn oxo oxx oxy oye oyi oyo rcc rce rci rcn rco rcr rcx re- rec ree rei ren reo rer rex rey ric rie rii rin rio rir rix riy rnc rni rnn rno rnr rny roc roe roi ron roo ror rox roy rrc rri rrn rrr rxr ry- ryc rye ryn ryo ryr ryy xci xcr xcx xee xen xer xex xic xie xii xin xio xix xnc xno xoc xoi xon xoo xor xox xrc xrx xry xxi xxo xxx xxy xyr xyy ycc yce yci yco ycy yec yee yei yen yeo yer yex yey yie yii yin yio yir yne ynn yny yoc yoe yoi yon yoo yor yox yoy yrc yre yrn yro yxe yxy yyc yye yyy