-er -ic a-a a-c a-i aaa aac aad aae aaf aai aar aav ac- aca acc acd ace acf aci acr acv ad- ada adc add ade adf adi adr adv aea aec aed aee aef aei aer aev af- afa afc afd afe aff afi afr afv ai- aia aic aid aie aif aii air aiv ar- ara arc ard are arf ari arr arv av- ava avc avd ave avf avi avr c-- caa cac cad cae caf cai car cav cca ccc ccd cce ccf cci ccr ccv cda cdc cdd cde cdf cdi cdr cdv ce- cea cec ced cee cef cei cer cev cfa cfc cfd cfe cff cfi cfr cfv ci- cia cic cid cie cif cii cir civ cra crc crd cre crf cri crr crv cva cvc cvd cve cvf cvi cvr cvv daa dac dad dae daf dai dar dav dca dcc dcd dce dcf dci dcr dcv dda ddc ddd dde ddf ddi ddr de- dea dec ded dee def dei der dev dfa dfc dfd dfe dff dfi dfr dfv di- dia dic did die dif dii dir div dra drc drd dre dri drr drv dva dvc dvd dve dvi dvr eaa eac ead eae eaf eai ear eav ec- eca ecc ecd ece ecf eci ecr ecv ed- eda edc edd ede edf edi edr eea eec eed eee eef eer eev ef- efa efc efd efe eff efi efr eia eic eid eie eif eii eir eiv era erc erd ere erf eri err erv eva evc evd eve evf evi evr evv faa fac fad fae faf fai far fav fca fcc fcd fce fcf fci fcr fcv fda fdc fdd fde fdf fdi fdr fea fec fed fee fef fei fer fev ffa ffc ffd ffe fff ffi ffr ffv fia fic fid fie fif fii fir fra frc frd fre frf fri frr fva fvc fvd i-d i-f i-v ia- iaa iac iad iae iaf iai iar iav ica icc icd ice icf ici icr icv ida idc idd ide idf idi idr idv ie- iea iec ied iee ief iei ier iev ifa ifc ifd ife iff ifi ifr iia iic iid iie iif iii iir ir- ira irc ird ire irf iri irr irv iva ivc ivd ive ivf ivi ivr ivv ra- raa rac rad rae raf rai rar rav rca rcc rcd rce rcf rci rcr rcv rda rdc rdd rde rdf rdi rdr rdv re- rea rec red ree ref rei rer rev rfa rfc rfd rfe rff rfi rfr rfv ria ric rid rie rif rii rir riv rra rrc rrd rrf rri rrr rva rvc rvd rve rvf rvi rvr rvv v-a v-e vaa vac vad vae vai var vav vca vcc vcd vce vcf vci vcr vdc vdd vde vdf vdi vdr vdv vea vec ved vee vef vei ver vfa vfc vfd vff vfi vfr vfv vi- via vic vid vie vif vii vir viv vra vrc vrd vre vrf vri vrr vva vvc vvi vvr vvv