-er a-a a-b a-c a-q aaa aab aac aae aaf aan aao aaq aar aau aaw ab- aba abb abc abe abf abn abo abq abr abu abw ac- aca acb acc ace acf acn aco acq acr acu acw aea aeb aec aee aef aen aeo aeq aer aeu aew af- afa afb afc afe aff afn afo afq afr afu afw an- ana anb anc ane anf ann ano anq anr anu aoa aob aoc aoe aof aon aoo aor aou aow aqa aqc aqf aqn aqo aqr ar- ara arb arc are arf arn aro arq arr aru arw au- aua aub auc aue auf aun auo aur auw aw- awa awb awc awe awf awn awo awr awu aww b-u baa bab bac bae baf ban bao baq bar bau baw bba bbb bbc bbe bbf bbn bbo bbq bbr bbu bbw bca bcb bcc bce bcf bcn bco bcq bcr bcu be- bea beb bec bee bef ben beo beq ber beu bew bfa bfb bfc bfe bff bfn bfo bfq bfr bfu bna bnb bnc bne bnf bnn bno bnr bnu bnw boa bob boc boe bof bon boo boq bor bou bow bqc bqe bqw bra brb bre brf brn bro brq brr bru brw bua bub buc bue buf bun buo bur buu buw bwa bwb bwc bwf bwo bwr bwu c-- caa cab cac cae caf can cao caq car cau caw cba cbb cbc cbe cbf cbn cbo cbq cbr cbu cbw cca ccb ccc cce ccf ccn cco ccr ccu ccw ce- cea ceb cec cee cef cen ceo ceq cer ceu cew cfa cfb cfc cfe cff cfn cfo cfq cfr cfu cfw cn- cna cnb cnc cne cnf cnn cno cnr cnu cnw co- coa cob coc coe cof con coo coq cor cou cow cqa cqb cqc cqf cqo cra crb crc cre crf crn cro crq crr cru crw cua cub cuc cue cuf cun cuo cuq cur cuu cuw cw- cwa cwb cwc cwe cwn cwo cwr cwu eaa eab eac eae eaf ean eao ear eau eaw eba ebb ebc ebe ebf ebn ebo ebq ebr ebu ebw ec- eca ecb ecc ece ecf ecn eco ecq ecr ecu ecw eea eeb eec eee eef een eeo eer eew ef- efa efb efc efe eff efo efr efw en- ena enb enc ene enf enn eno enr enu enw eo- eoa eob eoc eoe eof eon eoo eoq eor eou eow eqa eqe eqf eqn eqq equ era erb erc ere erf ern ero erq err eru erw eu- eua eub euc eue euf eun eur ewa ewb ewc ewe ewf ewo ewr ewu eww faa fab fac fae faf fan fao faq far fau faw fba fbb fbc fbe fbf fbn fbo fbr fbu fbw fca fcb fcc fce fcf fcn fco fcr fcu fcw fea feb fec fee fef fen feo fer feu few ffa ffc ffe fff ffn ffo ffr ffu ffw fna fnb fnc fne fnf fnn fnr fnu fnw foa fob foc foe fof fon foo for fou fow fra frb frc fre frf frn fro frq frr fru frw fua fub fue fuf fun fuo fur fuu fwa fwb fwc fwe fwf fwn fwo naa nab nac nae naf nan nao nar nau naw nba nbb nbc nbe nbf nbn nbo nbr nbu nbw nca ncb ncc nce ncf ncn nco ncr ncu ncw ne- nea neb nec nee nef nen neo ner neu new nfa nfb nfc nfe nff nfn nfo nfr nfu nna nnb nnc nne nnf nnn nno nnu nnw no- noa nob noc noe nof non noo nor nou now nqc nra nrb nrc nre nrf nrn nro nrr nru nrw nua nub nuc nue nun nuo nuq nur nuu nwa nwb nwc nwe nwf nwn nwo nwr nwu oaa oab oac oae oaf oan oao oaq oar oau oaw ob- oba obb obc obe obf obn obo obr obu obw oc- oca ocb occ ocf ocn oco ocr ocu ocw oea oeb oec oee oef oen oeo oer of- ofa ofb ofc ofe off ofn ofo ofr ofu ofw on- ona onb onc one onf onn ono onr onu oo- ooa oob ooc oof oon ooo oor oow oqb oqo or- ora orb orc ore orf orn oro orr oru ou- oua ouc oue ouf oun ouo our owa owb owc owe owf own owo owu oww qaa qac qaf qan qar qau qba qbc qbe qbq qca qcc qco qec qee qef qen qeo qew qfa qfb qfc qfe qff qnb qne qof qoo qor qqq qqu qra qrb qrc qre qru qu- qua que quo qur qw- qwn ra- raa rab rac rae raf ran rao raq rar rau raw rba rbb rbc rbe rbf rbn rbo rbr rbu rbw rca rcb rcc rce rcf rcn rco rcr rcu rcw re- rea reb rec ree ref ren reo req rer reu rew rfa rfb rfc rfe rff rfn rfo rfq rfr rfu rfw rna rnb rnc rnn rno rnr rnu rnw roa rob roc roe rof ron roo ror rou row rqc rqn rqw rra rrb rrc rrf rrn rrq rrr rru rua rub ruc rue ruf run ruo rur ruu rwa rwb rwc rwe rwf rwr rwu ua- uaa uab uac uae uaf uan uao uaq uar uau uaw uba ubb ubc ube ubf ubn ubo ubr ubu ubw uca ucb ucc uce ucf ucn uco ucr ucu ucw uea ueb uec uee uef uen uer uew ufa ufc ufe uff ufn ufo ufr ufu ufw un- una unb unc une unf unn uno unq unr unu unw uoa uob uoc uoe uon uoo uor uow ur- ura urb urc ure urf urn uro urr uru urw uua uuc uue uun uur uuu uwa uwb uwc uwe uwf uwn uwr uww waa wab wac wae waf wan wao war wau waw wba wbb wbc wbe wbf wbn wbo wbr