-er -ic -ji c-- c-j ccc cce ccf cch cci ccj cco ccr ccs ce- cec cee cef ceh cei cej ceo cer ces cfc cfe cff cfh cfi cfo cfr cfs ch- chc che chf chh chi cho chr chs ci- cic cie cif cih cii cij cio cir cis cjc cjf cjr cjs co- coc coe cof coh coi coj coo cor cos crc cre crf crh cri crj cro crr crs csc cse csf csh csi csj cso csr css ec- ecc ece ecf ech eci ecj eco ecr ecs eec eee eef eeo eer ees ef- efc efe eff efh efi efo efr efs ehc ehe ehf ehh ehi eho ehr ehs eic eie eif eii eij eio eir eis ejc ejf eji ejo eo- eoc eoe eof eoh eoi eoo eor eos erc ere erf erh eri ero err ers es- esc ese esf esh esi eso esr ess fcc fce fcf fci fcj fco fcr fcs fec fee fef feh fei feo fer fes ffc ffe fff ffh ffi ffo ffr ffs fhc fhe fhf fhh fhi fhj fho fhr fhs fic fie fif fih fii fij fir fis fjc fji fjs foc foe fof foh foi foo for fos frc fre frf frh fri frj fro frr frs fsc fse fsf fsh fsi fsj fso fsr fss h-i hcc hce hcf hch hci hcj hco hcr hcs he- hec hee hef heh hei hej heo her hes hfc hfe hff hfh hfi hfo hfr hfs hhc hhe hhf hhh hhi hhj hho hhr hhs hic hie hif hih hii hij hio hir his hji hjo hjr hjs hoc hoe hof hoh hoi hoo hor hos hr- hrc hre hrf hrh hri hrj hro hrr hrs hsc hse hsf hsh hsi hsj hsr hss i-f icc ice icf ich ici icj ico icr ics ie- iec iee ief iei iej ier ies ifc ife iff ifi ifo ifr ifs ihc ihe ihf ihh ihi iho ihr ihs iic iie iif iih iii iij iio iir iis ijc ije ijf iji ijo ijs io- ioc ioe iof ioh ioi ioj ioo ior ios ir- irc ire irf iri irj iro irr irs is- isc ise isf ish isi isj iso isr iss j-i jcc jce jcf jch jci jco jcr jcs jec jee jef jeh jei jej jeo jer jes jfc jfe jff jfh jfi jfj jfo jfr jfs jhc jhe jhf jhi jhj jho jhr jhs jic jie jif jih jii jij jio jir jis jjc jjf jjj jjr jjs joc joe jof joh joi joj joo jor jos jrc jrf jri jro jrr jrs jsc jse jsf jsh jsi jsj jso jsr jss o-i oc- occ ocf och oci ocj oco ocr ocs oec oee oef oeh oei oeo oer oes of- ofc ofe off ofi ofo ofr ofs ohc ohe ohf ohh ohi oho ohr ohs oic oie oif oii oio oir ois ojc oje oji ojo ojs oo- ooc oof ooh ooi ooo oor oos or- orc ore orf orh ori oro orr ors os- osc ose osf osh osi osj oso osr oss rcc rce rcf rch rci rcj rco rcr rcs re- rec ree ref reh rei reo rer res rfc rfe rff rfh rfi rfj rfo rfr rfs rh- rhc rhe rhf rhh rhi rho rhr rhs ric rie rif rih rii rio rir ris rjc rjf rjr roc roe rof roh roi roj roo ror ros rrc rrf rrh rri rrr rrs rsc rse rsf rsh rsi rsj rso rsr rss scc sce scf sch sci scj sco scr scs se- sec see sef seh sei sej seo ser ses sfc sfe sff sfh sfi sfj sfo sfr sfs sh- shc she shf shh shi sho shr shs sic sie sif sih sii sij sio sir sis sjc sje sjf sjh sji sjj sjr sjs soc soe sof soh soi soj soo sor sos sr- src sre srf srh sri srj sro srr srs ss- ssc sse ssf ssh ssi ssj sso ssr sss