-er -ey bbb bbc bbd bbe bbr bbs bbx bby bcb bcc bcd bce bcr bcs bcx bcy bdb bdc bdd bde bdr bds bdx bdy be- beb bec bed bee ber bes bex bey brb brd bre brr brs brx bry bsb bsc bsd bse bsr bss bsx bsy bxb bxd bxx by- byc byd bye byr bys c-- cbb cbc cbd cbe cbr cbs cbx cby ccb ccc ccd cce ccr ccs ccx cdb cdc cdd cde cdr cds cdx cdy ce- ceb cec ced cee cer ces cex cey crb crc crd cre crr crs crx cry csb csc csd cse csr css csx csy cxc cxr cxs cxx cyb cyc cyd cye cyr cys dbb dbc dbd dbe dbr dbs dbx dby dcb dcc dcd dce dcr dcs dcx ddb ddc ddd dde ddr dds ddx ddy de- deb dec ded dee der des dex dey drb drc drd dre drr drs drx dry dsb dsc dsd dse dsr dss dsx dsy dxc dxd dxr dxs dxx dy- dyb dyc dyd dye dyr dys dyy ebb ebc ebd ebe ebr ebs ebx eby ec- ecb ecc ecd ece ecr ecs ecx ed- edb edc edd ede edr eds edx edy eeb eec eed eee eer ees eex eey erb erc erd ere err ers ery es- esb esc esd ese esr ess esx esy ex- exc exd exe exr exs exx exy eyc eyd eye eyr eys rbb rbc rbd rbe rbr rbs rbx rcb rcc rcd rce rcr rcs rcx rdb rdc rdd rde rdr rds rdx rdy re- reb rec red ree rer res rex rey rrb rrc rrd rrr rrs rsb rsc rsd rse rsr rss rsx rxr rxs ry- ryc ryd rye ryr rys ryy sbb sbc sbd sbe sbr sbs sbx sby scb scc scd sce scr scs scx sdb sdc sdd sde sdr sds sdy se- seb sec sed see ser ses sex sey sr- srb src srd sre srr srs srx sry ss- ssb ssc ssd sse ssr sss ssx sxc sxs sy- syb syc syd sye syr sys syx xbc xbe xbr xbx xcb xcd xcr xcx xdb xdc xde xdr xds xed xee xer xes xex xrc xrd xrx xry xsb xsc xss xxx xxy xyr xyy ybc ybe ybr ybs yby ycc ycd yce ycs ycy yde yds ydy yeb yec yed yee yer yes yex yey yrc yre yrs ysb ysc yse ysr yss ysy yxe yxy yyb yyc yye yys yyy