a-a a-b a-c a-t aaa aab aac aae aag aak aan aao aas aat aaw ab- aba abb abc abe abg abk abn abo abs abt abw ac- aca acb acc ace acg ack acn aco acs act acw aea aeb aec aee aeg aek aen aeo aes aet aew ag- aga agb agc age agg agk agn ago ags agt agw aka akb akc ake akg akk akn ako aks akw an- ana anb anc ane ang ank ann ano ans ant aoa aob aoc aoe aog aok aon aoo aos aot aow as- asa asb asc ase asg ask asn aso ass ast asw at- ata atb atc ate atg atn ato ats att atw aw- awa awb awc awe awg awk awn awo aws awt aww baa bab bac bae bag bak ban bao bas bat baw bba bbb bbc bbe bbg bbk bbn bbo bbs bbt bbw bca bcb bcc bce bcg bck bcn bco bcs bct be- bea beb bec bee beg bek ben beo bes bet bew bga bgb bgc bge bgg bgk bgn bgo bgs bgt bgw bka bkb bkc bke bkg bkk bkn bko bks bkt bkw bna bnb bnc bne bng bnk bnn bno bns bnt bnw boa bob boc boe bog bok bon boo bos bot bow bsa bsb bsc bse bsg bsk bsn bso bss bst bsw bta btb btc bte btg btk btn bto bts btt btw bwa bwb bwc bwg bwk bwo bws c-- caa cab cac cae cag cak can cao cas cat caw cba cbb cbc cbe cbg cbk cbn cbo cbs cbt cbw cca ccb ccc cce ccg cck ccn cco ccs cct ccw ce- cea ceb cec cee ceg cek cen ceo ces cet cew cga cgb cgc cge cgg cgn cgo cgs cgt cgw cka ckb ckc cko cks ckt ckw cn- cna cnb cnc cne cng cnn cno cns cnt cnw co- coa cob coc coe cog cok con coo cos cot cow csa csb csc cse csg csk csn cso css cst csw cta ctb ctc cte ctg ctk ctn cto cts ctt ctw cw- cwa cwb cwc cwe cwg cwk cwn cwo cws cwt eaa eab eac eae eag eak ean eao eas eat eaw eba ebb ebc ebe ebg ebk ebn ebo ebs ebt ebw ec- eca ecb ecc ece ecg eck ecn eco ecs ect ecw eea eeb eec eee eeg eek een eeo ees eet eew ega egb egc ege egg egn ego egs egt egw eka ekb ekc eke ekg eko eks ekt en- ena enb enc ene eng enk enn eno ens ent enw eo- eoa eob eoc eoe eog eok eon eoo eos eot eow es- esa esb esc ese esg esk esn eso ess est esw eta etb etc ete etg etk etn eto ets ett etw ewa ewb ewc ewe ewk ewo ews ewt eww gaa gab gac gae gag gak gan gao gas gat gaw gba gbc gbe gbg gbk gbn gbo gbs gbt gbw gca gcb gcc gce gcg gck gcn gco gcs gct gcw ge- gea geb gec gee geg gek gen geo ges get gew gga ggb ggc ggg ggn ggo ggs ggt ggw gka gkb gkn gko gks gkt gna gnb gnc gne gnn gno gns gnt gnw goa gob goc goe gog gok gon goo gos got gow gsa gsb gsc gse gsg gsk gsn gso gss gst gsw gta gtb gtc gte gtg gtk gtn gto gts gtt gtw gwa gwb gwc gwe gwg gwk gwn gws gwt k-t ka- kaa kab kac kae kag kak kan kao kas kat kaw kba kbb kbc kbe kbk kbn kbo kbs kbw kca kcb kcc kce kcg kck kcn kcs kct ke- kea keb kec kee keg kek ken keo kes ket kew kga kgb kgc kgo kgs kgw kkb kkc kke kkk kkn kks kkt kn- kna knc kne kng knk knn kno knt koa kob koc koe kog kok kon koo kos kot kow ksa ksb ksc kse ksg ksk ksn kso kss kst ksw kta ktb ktc kte ktg ktk ktn kto kts ktt ktw kw- kwa kwc kwg kwk kwo kws kwt kww naa nab nac nae nag nak nan nao nas nat naw nba nbb nbc nbe nbg nbk nbn nbo nbs nbt nbw nca ncb ncc nce ncg nck ncn nco ncs nct ncw ne- nea neb nec nee neg nek nen neo nes net new nga ngb ngc nge ngg ngk ngn ngo ngs ngt ngw nka nkc nke nkk nkn nko nks nkt nna nnb nnc nne nng nnk nnn nno nns nnt nnw no- noa nob noc noe nog nok non noo nos not now nsa nsb nsc nse nsg nsk nsn nso nss nst nsw nta ntb ntc nte ntg ntk ntn nto nts ntt nwa nwb nwc nwe nwn nwo nws nwt oaa oab oac oae oag oak oan oao oas oat oaw ob- oba obb obc obe obg obk obn obo obs obt obw oc- oca ocb occ ocg ock ocn oco ocs oct ocw oea oeb oec oee oeg oen oeo oes oet oga ogc oge ogg ogn ogo ogs ogt oka okb okc oke okg okk oko oks okw on- ona onb onc one ong onk onn ono ons ont oo- ooa oob ooc oog ook oon ooo oos oot oow os- osa osb osc ose osg osk osn oso oss ost osw ot- ota otb otc ote otg otk otn oto ots ott otw owa owb owc owe owk own owo ows owt oww saa sab sac sae sag sak san sao sas sat saw sba sbb sbc sbe sbg sbk sbn sbo sbs sbt sbw sca scb scc sce scg sck scn sco scs sct scw se- sea seb sec see seg sek sen seo ses set sew sga sgb sgc sge sgg sgk sgn sgo sgs sgt sk- ska skb skc ske skg skk sko sks skt skw sna