-er -ic bbb bbc bbe bbg bbh bbi bbo bbr bcb bcc bce bcg bch bci bco bcr bcv be- beb bec bee beg beh bei beo ber bev bgb bgc bge bgg bgh bgi bgo bgr bgv bhb bhc bhe bhg bhh bhi bho bhr bhv bi- bib bic bie big bih bii bio bir biv bob boc boe bog boh boi boo bor bov brb bre brg brh bri bro brr brv bvb bvc bve bvg bvh bvi bvo bvr bvv c-- cbb cbc cbe cbg cbh cbi cbo cbr cbv ccb ccc cce ccg cch cci cco ccr ccv ce- ceb cec cee ceg ceh cei ceo cer cev cgb cgc cge cgg cgh cgi cgo cgr cgv ch- chb chc che chg chh chi cho chr chv ci- cib cic cie cig cih cii cio cir civ co- cob coc coe cog coh coi coo cor cov crb crc cre crg crh cri cro crr crv cvb cvc cve cvg cvh cvi cvo cvr cvv ebb ebc ebe ebg ebh ebi ebo ebr ebv ec- ecb ecc ece ecg ech eci eco ecr ecv eeb eec eee eeg eeo eer eev egb egc ege egg egh egi ego egr ehb ehc ehe ehg ehh ehi eho ehr ehv eib eic eie eig eii eio eir eiv eo- eob eoc eoe eog eoh eoi eoo eor erb erc ere erg erh eri ero err erv evb evc eve evg evh evi evo evr evv gbc gbe gbg gbh gbi gbo gbr gbv gcb gcc gce gcg gch gci gco gcr ge- geb gec gee geg geh gei geo ger gev ggb ggc ggg ggh ggi ggo ggr ggv ghb ghc ghe ghg ghh ghi gho ghr gib gic gie gig gih gii gio gir giv gob goc goe gog goh goi goo gor gov grb grc gre grg grh gri gro grr grv gvb gvc gve gvg gvh gvi gvo gvr h-i hbb hbc hbe hbg hbh hbi hbo hbr hbv hcb hcc hce hcg hch hci hco hcr hcv he- heb hec hee heg heh hei heo her hev hgb hgc hge hgg hgh hgi hgo hgr hgv hhb hhc hhe hhg hhh hhi hho hhr hhv hib hic hie hig hih hii hio hir hiv hob hoc hoe hog hoh hoi hoo hor hov hr- hrb hrc hre hrg hrh hri hro hrr hrv hv- hvb hvc hvg hvo hvr hvv i-v ibb ibc ibe ibg ibh ibi ibo ibr ibv icb icc ice icg ich ici ico icr icv ie- iec iee ieg iei ier iev igb igc ige igg igh igi igo igr ihb ihc ihe ihg ihh ihi iho ihr ihv iib iic iie iih iii iio iir io- iob ioc ioe iog ioh ioi ioo ior iov ir- irb irc ire irg iri iro irr irv ivb ivc ive ivg ivi ivo ivr ivv o-i ob- obb obc obe obg obh obi obo obr obv oc- ocb occ ocg och oci oco ocr ocv oeb oec oee oeg oeh oei oeo oer ogc oge ogg ogh ogi ogo ohc ohe ohg ohh ohi oho ohr oib oic oie oii oio oir oiv oo- oob ooc oog ooh ooi ooo oor oov or- orb orc ore org orh ori oro orr orv ov- ovb ovc ove ovh ovi ovo ovv rbb rbc rbe rbg rbh rbi rbo rbr rcb rcc rce rcg rch rci rco rcr rcv re- reb rec ree reg reh rei reo rer rev rgb rgc rge rgg rgh rgi rgo rgr rgv rh- rhb rhc rhe rhg rhh rhi rho rhr rhv rib ric rie rig rih rii rio rir riv rob roc roe rog roh roi roo ror rov rrb rrc rrg rrh rri rrr rvb rvc rve rvg rvh rvi rvo rvr rvv v-e vbc vbg vbh vbi vbo vbr vbv vcc vce vch vci vco vcr veb vec vee veg veh vei veo ver vgc vgg vgh vgo vgr vh- vhb vhc vhe vhi vho vi- vib vic vie vig vii vio vir viv vob voc voe vog voh voi voo vor vov vrb vrc vre vrg vrh vri vrr vvb vvc vvg vvi vvo vvr vvv