-er -ic b-u bbb bbc bbe bbf bbi bbl bbm bbr bbt bbu bbx bcb bcc bce bcf bci bcl bcm bcr bct bcu bcx be- beb bec bee bef bei bel bem ber bet beu bex bfb bfc bfe bff bfi bfl bfm bfr bft bfu bfx bi- bib bic bie bif bii bil bim bir bit biu bix blb blc ble blf bli bll blm blr blt blu blx bmb bmc bme bmf bmi bml bmm bmr bmt bmu bmx brb bre brf bri brl brm brr brt bru brx btb btc bte btf bti btl btm btr btt btu btx bub buc bue buf bui bul bum bur but buu bux bxb bxi bxl bxm bxx c-- cbb cbc cbe cbf cbi cbl cbm cbr cbt cbu cbx ccb ccc cce ccf cci ccl ccm ccr cct ccu ccx ce- ceb cec cee cef cei cel cem cer cet ceu cex cfb cfc cfe cff cfi cfl cfm cfr cft cfu cfx ci- cib cic cie cif cii cil cim cir cit ciu cix cl- clb clc cle clf cli cll clm clr clt clu clx cmb cmc cme cmf cmi cml cmm cmr cmt cmu cmx crb crc cre crf cri crl crm crr crt cru crx ctb ctc cte ctf cti ctl ctm ctr ctt ctu ctx cub cuc cue cuf cui cul cum cur cut cuu cxc cxf cxi cxl cxr cxt cxx ebb ebc ebe ebf ebi ebl ebm ebr ebt ebu ebx ec- ecb ecc ece ecf eci ecl ecm ecr ect ecu ecx eeb eec eee eef eel eem eer eet eex ef- efb efc efe eff efi efl efm efr eft efx eib eic eie eif eii eil eim eir eit eiu eix elb elc ele elf eli ell elm elr elt elu elx em- emb emc eme emf emi eml emm emr emt emu emx erb erc ere erf eri erl erm err ert eru etb etc ete etf eti etl etm etr ett etu etx eu- eub euc eue euf eui eul eur eut eux ex- exc exe exi exl exr ext exu exx fbb fbc fbe fbf fbi fbl fbm fbr fbt fbu fbx fcb fcc fce fcf fci fcl fcm fcr fct fcu fcx feb fec fee fef fei fel fem fer fet feu fex ffc ffe fff ffi ffl ffm ffr fft ffu ffx fib fic fie fif fii fil fim fir fit fiu fix flb flc fle flf fli fll flm flr flt flu flx fmb fmc fme fmf fmi fml fmm fmr fmt fmu fmx frb frc fre frf fri frl frm frr frt fru ftb ftc fte ftf fti ftl ftm ftr ftt ftu ftx fub fue fuf fui ful fum fur fut fuu fux fxe fxi fxm fxr fxt fxu fxx i-f ibb ibc ibe ibf ibi ibl ibm ibr ibt ibu ibx icb icc ice icf ici icl icm icr ict icu ie- iec iee ief iei iel iem ier iet iex ifb ifc ife iff ifi ifl ifm ifr ift ifu ifx iib iic iie iif iii iil iim iir iit iiu iix il- ilb ilc ile ilf ili ill ilm ilr ilt ilu ilx im- imb imc ime imf imi iml imm imt imu imx ir- irb irc ire irf iri irl irm irr irt iru irx itb itc ite itf iti itl itm itt itu itx iu- iub iuc iue iui ium iur iut ixc ixe ixi ixl lbb lbc lbe lbf lbi lbl lbm lbr lbt lbu lbx lcb lcc lce lcf lci lcl lcm lcr lct lcu lcx leb lec lee lef lei lel lem ler let leu lex lfb lfc lfe lff lfi lfl lfm lfr lft lfu lfx lib lic lie lif lii lil lim lir lit liu lix llb llc lle llf lli lll llm llr llt llu lmb lmc lme lmf lmi lml lmm lmr lmt lmu lrb lrc lrf lri lrm lrr lrt lru ltb ltc lte ltf lti ltl ltm ltr ltt ltu ltx lub luc lue luf lui lul lum lur lut luu lux lxc lxi lxr lxx m-f m-r mbb mbc mbe mbf mbi mbl mbm mbr mbt mbu mbx mc- mcb mcc mce mcf mci mcl mcm mcr mct mcu mcx meb mec mee mef mei mel mem mer met meu mex mfb mfc mfe mff mfi mfl mfm mfr mft mfu mi- mib mic mie mif mii mil mim mir mit miu mix mlb mlc mle mlf mli mll mlm mlr mlt mlu mlx mmb mmc mme mmf mmi mml mmm mmr mmt mmu mmx mrb mrc mre mrf mri mrl mrm mrr mrt mru mrx mtb mtc mte mtf mti mtl mtm mtr mtt mtu mtx mub muc mue muf mui mul mum mur mut muu mux mxc mxi mxl mxr mxu rbb rbc rbe rbf rbi rbl rbm rbr rbt rbu rbx rcb rcc rce rcf rci rcl rcm rcr rct rcu rcx re- reb rec ree ref rei rel rem rer ret reu rex rfb rfc rfe rff rfi rfl rfm rfr rft rfu rib ric rie rif rii ril rim rir rit rix rlc rle rlf rli rll rlm rlr rlt rlu rmb rmc rme rmf rmi rml rmm rmr rmt rmx rrb rrc rrf rri rrl rrm rrr rrt rru rtb rtc rte rtf rti rtl rtm rtr rtt rtu rtx rub ruc rue ruf rui rum rur rut ruu rux rxr t-x tbb tbc tbe tbf tbi tbl tbm tbr tbt tbu tcb tcc tce tcf tci tcl tcm tcr tct tcu tcx te- teb tec tee tef tei tel tem ter tet teu tex tfb tfc tfe tff tfi tfl tfm tfr tft tfu tfx tib tic tie tif tii til tim tir tit tiu tix tlc tle tlf tli tll tlm tlr tlt tlu tlx tmb tmc tme tmf tmi tml tmm tmr tmt tmu tmx trb trc tre trf tri trl trm trr trt tru trx