-er -ic b-u bbb bbc bbe bbf bbi bbl bbm bbr bbu bcb bcc bce bcf bci bcl bcm bcr bcu be- beb bec bee bef bei bel bem ber beu bfb bfc bfe bff bfi bfl bfm bfr bfu bi- bib bic bie bif bii bil bim bir biu blb blc ble blf bli bll blm blr blu bmb bmc bme bmf bmi bml bmm bmr bmu brb bre brf bri brl brm brr bru bub buc bue buf bui bul bum bur buu c-- cbb cbc cbe cbf cbi cbl cbm cbr cbu ccb ccc cce ccf cci ccl ccm ccr ccu ce- ceb cec cee cef cei cel cem cer ceu cfb cfc cfe cff cfi cfl cfm cfr cfu ci- cib cic cie cif cii cil cim cir ciu cl- clb clc cle clf cli cll clm clr clu cmb cmc cme cmf cmi cml cmm cmr cmu crb crc cre crf cri crl crm crr cru cub cuc cue cuf cui cul cum cur cuu ebb ebc ebe ebf ebi ebl ebm ebr ebu ec- ecb ecc ece ecf eci ecl ecm ecr ecu eeb eec eee eef eel eem eer ef- efb efc efe eff efi efl efm efr eib eic eie eif eii eil eim eir eiu elb elc ele elf eli ell elm elr elu em- emb emc eme emf emi eml emm emr emu erb erc ere erf eri erl erm err eru eu- eub euc eue euf eui eul eur fbb fbc fbe fbf fbi fbl fbm fbr fbu fcb fcc fce fcf fci fcl fcm fcr fcu feb fec fee fef fei fel fem fer feu ffc ffe fff ffi ffl ffm ffr ffu fib fic fie fif fii fil fim fir fiu flb flc fle flf fli fll flm flr flu fmb fmc fme fmf fmi fml fmm fmr fmu frb frc fre frf fri frl frm frr fru fub fue fuf fui ful fum fur fuu i-f ibb ibc ibe ibf ibi ibl ibm ibr ibu icb icc ice icf ici icl icm icr icu ie- iec iee ief iei iel iem ier ifb ifc ife iff ifi ifl ifm ifr ifu iib iic iie iif iii iil iim iir iiu il- ilb ilc ile ilf ili ill ilm ilr ilu im- imb imc ime imf imi iml imm imu ir- irb irc ire irf iri irl irm irr iru iu- iub iuc iue iui ium iur lbb lbc lbe lbf lbi lbl lbm lbr lbu lcb lcc lce lcf lci lcl lcm lcr lcu leb lec lee lef lei lel lem ler leu lfb lfc lfe lff lfi lfl lfm lfr lfu lib lic lie lif lii lil lim lir liu llb llc lle llf lli lll llm llr llu lmb lmc lme lmf lmi lml lmm lmr lmu lrb lrc lrf lri lrm lrr lru lub luc lue luf lui lul lum lur luu m-f m-r mbb mbc mbe mbf mbi mbl mbm mbr mbu mc- mcb mcc mce mcf mci mcl mcm mcr mcu meb mec mee mef mei mel mem mer meu mfb mfc mfe mff mfi mfl mfm mfr mfu mi- mib mic mie mif mii mil mim mir miu mlb mlc mle mlf mli mll mlm mlr mlu mmb mmc mme mmf mmi mml mmm mmr mmu mrb mrc mre mrf mri mrl mrm mrr mru mub muc mue muf mui mul mum mur muu rbb rbc rbe rbf rbi rbl rbm rbr rbu rcb rcc rce rcf rci rcl rcm rcr rcu re- reb rec ree ref rei rel rem rer reu rfb rfc rfe rff rfi rfl rfm rfr rfu rib ric rie rif rii ril rim rir rlc rle rlf rli rll rlm rlr rlu rmb rmc rme rmf rmi rml rmm rmr rrb rrc rrf rri rrl rrm rrr rru rub ruc rue ruf rui rum rur ruu ubb ubc ube ubf ubi ubl ubr ubu ucb ucc uce ucf uci ucl ucm ucr ucu ueb uec uee uef uei uel uem uer ufc ufe uff ufi ufl ufm ufr ufu uib uic uie uif uii uil uim uir uiu ulb ulc ule ulf uli ull ulm ulr ulu um- umb umc ume umf umi uml umm umr umu ur- urb urc ure urf uri url urm urr uru uuc uue uum uur uuu