-al -er -ol a-a a-b a-c aaa aab aac aae aaf aah aal aao aar aas aau ab- aba abb abc abe abf abh abl abo abr abs abu ac- aca acb acc ace acf ach acl aco acr acs acu aea aeb aec aee aef aeh ael aeo aer aes aeu af- afa afb afc afe aff afh afl afo afr afs afu aha ahb ahc ahe ahf ahh ahl aho ahr ahs ahu al- ala alb alc ale alf alh all alo alr als alu aoa aob aoc aoe aof aoh aol aoo aor aos aou ar- ara arb arc are arf arh arl aro arr ars aru as- asa asb asc ase asf ash asl aso asr ass asu au- aua aub auc aue auf auh aul auo aur aus b-u baa bab bac bae baf bah bal bao bar bas bau bba bbb bbc bbe bbf bbh bbl bbo bbr bbs bbu bca bcb bcc bce bcf bch bcl bco bcr bcs bcu be- bea beb bec bee bef beh bel beo ber bes beu bfa bfb bfc bfe bff bfh bfl bfo bfr bfs bfu bha bhb bhc bhe bhf bhh bhl bho bhr bhs bhu bla blb blc ble blf blh bll blo blr bls blu boa bob boc boe bof boh bol boo bor bos bou bra brb bre brf brh brl bro brr brs bru bsa bsb bsc bse bsf bsh bsl bso bsr bss bsu bua bub buc bue buf buh bul buo bur bus buu c-- caa cab cac cae caf cah cal cao car cas cau cba cbb cbc cbe cbf cbh cbl cbo cbr cbs cbu cca ccb ccc cce ccf cch ccl cco ccr ccs ccu ce- cea ceb cec cee cef ceh cel ceo cer ces ceu cfa cfb cfc cfe cff cfh cfl cfo cfr cfs cfu ch- cha chb chc che chf chh chl cho chr chs chu cl- cla clb clc cle clf clh cll clo clr cls clu co- coa cob coc coe cof coh col coo cor cos cou cra crb crc cre crf crh crl cro crr crs cru csa csb csc cse csf csh csl cso csr css csu cua cub cuc cue cuf cuh cul cuo cur cus cuu eaa eab eac eae eaf eah eal eao ear eas eau eba ebb ebc ebe ebf ebh ebl ebo ebr ebs ebu ec- eca ecb ecc ece ecf ech ecl eco ecr ecs ecu eea eeb eec eee eef eel eeo eer ees ef- efa efb efc efe eff efh efl efo efr efs eha ehb ehc ehe ehf ehh ehl eho ehr ehs ehu ela elb elc ele elf elh ell elo elr els elu eo- eoa eob eoc eoe eof eoh eol eoo eor eos eou era erb erc ere erf erh erl ero err ers eru es- esa esb esc ese esf esh esl eso esr ess esu eu- eua eub euc eue euf eul eur eus faa fab fac fae faf fah fal fao far fas fau fba fbb fbc fbe fbf fbh fbl fbo fbr fbs fbu fca fcb fcc fce fcf fcl fco fcr fcs fcu fea feb fec fee fef feh fel feo fer fes feu ffa ffc ffe fff ffh ffl ffo ffr ffs ffu fha fhb fhc fhe fhf fhh fhl fho fhr fhs fla flb flc fle flf fll flo flr fls flu foa fob foc foe fof foh fol foo for fos fou fra frb frc fre frf frh frl fro frr frs fru fsa fsb fsc fse fsf fsh fsl fso fsr fss fsu fua fub fue fuf ful fuo fur fus fuu haa hab hac hae haf hah hal hao har has hau hba hbb hbc hbe hbf hbh hbl hbo hbr hbs hbu hca hcb hcc hce hcf hch hcl hco hcr hcs he- hea heb hec hee hef heh hel heo her hes heu hfa hfb hfc hfe hff hfh hfl hfo hfr hfs hfu hha hhb hhc hhe hhf hhh hhl hho hhr hhs hhu hla hlb hlc hle hlf hlh hll hlo hlr hls hlu hoa hob hoc hoe hof hoh hol hoo hor hos hou hr- hra hrb hrc hre hrf hrh hrl hro hrr hrs hru hsa hsb hsc hse hsf hsh hsl hsr hss hsu hua hub huc hue huf huh hul huo hur hus huu la- laa lab lac lae laf lah lal lao lar las lau lba lbb lbc lbe lbf lbh lbl lbo lbr lbs lbu lca lcb lcc lce lcf lch lcl lco lcr lcs lcu lea leb lec lee lef leh lel leo ler les leu lfa lfb lfc lfe lff lfh lfl lfo lfr lfs lfu lha lhb lhc lhf lhh lho lhr lhs lhu lla llb llc lle llf lll llo llr lls llu loa lob loc loe lof loh lol loo lor los lou lra lrb lrc lrf lrh lro lrr lrs lru lsa lsb lsc lse lsf lsh lsl lso lsr lss lsu lua lub luc lue luf luh lul luo lur lus luu oaa oab oac oae oaf oah oal oao oar oas oau ob- oba obb obc obe obf obh obl obo obr obs obu oc- oca ocb occ ocf och ocl oco ocr ocs ocu oea oeb oec oee oef oeh oel oeo oer oes of- ofa ofb ofc ofe off ofl ofo ofr ofs ofu oha ohc ohe ohf ohh ohl oho ohr ohs ohu ola olb olc ole olf oll olo ols olu oo- ooa oob ooc oof ooh ool ooo oor oos or- ora orb orc ore orf orh orl oro orr ors oru os- osa osb osc ose osf osh osl oso osr oss osu ou- oua ouc oue ouf ouh oul ouo our ous ra- raa rab rac rae raf rah ral rao rar ras rau rba rbb rbc rbe rbf rbh rbl rbo rbr rbs rbu rca rcb rcc rce rcf