-al -er -ic a-a a-b a-c a-i a-t aaa aab aac aae aaf aai aal aar aat ab- aba abb abc abe abf abi abl abr abt ac- aca acb acc ace acf aci acl acr act aea aeb aec aee aef aei ael aer aet af- afa afb afc afe aff afi afl afr aft ai- aia aib aic aie aif aii ail air ait al- ala alb alc ale alf ali all alr alt ar- ara arb arc are arf ari arl arr art at- ata atb atc ate atf ati atl atr att baa bab bac bae baf bai bal bar bat bba bbb bbc bbe bbf bbi bbl bbr bbt bca bcb bcc bce bcf bci bcl bcr bct be- bea beb bec bee bef bei bel ber bet bfa bfb bfc bfe bff bfi bfl bfr bft bi- bia bib bic bie bif bii bil bir bit bla blb blc ble blf bli bll blr blt bra brb bre brf bri brl brr brt bta btb btc bte btf bti btl btr btt c-- caa cab cac cae caf cai cal car cat cba cbb cbc cbe cbf cbi cbl cbr cbt cca ccb ccc cce ccf cci ccl ccr cct ce- cea ceb cec cee cef cei cel cer cet cfa cfb cfc cfe cff cfi cfl cfr cft ci- cia cib cic cie cif cii cil cir cit cl- cla clb clc cle clf cli cll clr clt cra crb crc cre crf cri crl crr crt cta ctb ctc cte ctf cti ctl ctr ctt eaa eab eac eae eaf eai eal ear eat eba ebb ebc ebe ebf ebi ebl ebr ebt ec- eca ecb ecc ece ecf eci ecl ecr ect eea eeb eec eee eef eel eer eet ef- efa efb efc efe eff efi efl efr eft eia eib eic eie eif eii eil eir eit ela elb elc ele elf eli ell elr elt era erb erc ere erf eri erl err ert eta etb etc ete etf eti etl etr ett faa fab fac fae faf fai fal far fat fba fbb fbc fbe fbf fbi fbl fbr fbt fca fcb fcc fce fcf fci fcl fcr fct fea feb fec fee fef fei fel fer fet ffa ffc ffe fff ffi ffl ffr fft fia fib fic fie fif fii fil fir fit fla flb flc fle flf fli fll flr flt fra frb frc fre frf fri frl frr frt fta ftb ftc fte ftf fti ftl ftr ftt i-f ia- iaa iab iac iae iaf iai ial iar iat iba ibb ibc ibe ibf ibi ibl ibr ibt ica icb icc ice icf ici icl icr ict ie- iea iec iee ief iei iel ier iet ifa ifb ifc ife iff ifi ifl ifr ift iia iib iic iie iif iii iil iir iit il- ila ilb ilc ile ilf ili ill ilr ilt ir- ira irb irc ire irf iri irl irr irt ita itb itc ite itf iti itl itt la- laa lab lac lae laf lai lal lar lat lba lbb lbc lbe lbf lbi lbl lbr lbt lca lcb lcc lce lcf lci lcl lcr lct lea leb lec lee lef lei lel ler let lfa lfb lfc lfe lff lfi lfl lfr lft lia lib lic lie lif lii lil lir lit lla llb llc lle llf lli lll llr llt lra lrb lrc lrf lri lrr lrt lta ltb ltc lte ltf lti ltl ltr ltt ra- raa rab rac rae raf rai ral rar rat rba rbb rbc rbe rbf rbi rbl rbr rbt rca rcb rcc rce rcf rci rcl rcr rct re- rea reb rec ree ref rei rel rer ret rfa rfb rfc rfe rff rfi rfl rfr rft ria rib ric rie rif rii ril rir rit rla rlc rle rlf rli rll rlr rlt rra rrb rrc rrf rri rrl rrr rrt rta rtb rtc rte rtf rti rtl rtr rtt taa tab tac tae taf tai tal tar tat tba tbb tbc tbe tbf tbi tbl tbr tbt tca tcb tcc tce tcf tci tcl tcr tct te- tea teb tec tee tef tei tel ter tet tfa tfb tfc tfe tff tfi tfl tfr tft tia tib tic tie tif tii til tir tit tla tlc tle tlf tli tll tlr tlt tra trb trc tre trf tri trl trr trt tta ttb ttc tte ttf tti ttl ttr ttt