a-a a-b a-c aaa aab aac aae aah aak aas aaw ab- aba abb abc abe abh abk abs abw ac- aca acb acc ace ach ack acs acw aea aeb aec aee aeh aek aes aew aha ahb ahc ahe ahh ahk ahs ahw aka akb akc ake akh akk aks akw as- asa asb asc ase ash ask ass asw aw- awa awb awc awe awh awk aws aww baa bab bac bae bah bak bas baw bba bbb bbc bbe bbh bbk bbs bbw bca bcb bcc bce bch bck bcs be- bea beb bec bee beh bek bes bew bha bhb bhc bhe bhh bhk bhs bhw bka bkb bkc bke bkk bks bkw bsa bsb bsc bse bsh bsk bss bsw bwa bwb bwc bwh bwk bws c-- caa cab cac cae cah cak cas caw cba cbb cbc cbe cbh cbk cbs cbw cca ccb ccc cce cch cck ccs ccw ce- cea ceb cec cee ceh cek ces cew ch- cha chb chc che chh chk chs chw cka ckb ckc ckh cks ckw csa csb csc cse csh csk css csw cw- cwa cwb cwc cwe cwh cwk cws eaa eab eac eae eah eak eas eaw eba ebb ebc ebe ebh ebk ebs ebw ec- eca ecb ecc ece ech eck ecs ecw eea eeb eec eee eek ees eew eha ehb ehc ehe ehh ehs eka ekb ekc eke ekh eks es- esa esb esc ese esh esk ess esw ewa ewb ewc ewe ewk ews eww haa hab hac hae hah hak has haw hba hbb hbc hbe hbh hbk hbs hbw hca hcb hcc hce hch hck hcs hcw he- hea heb hec hee heh hek hes hew hha hhb hhc hhe hhh hhk hhs hhw hka hkb hkh hkk hks hkw hsa hsb hsc hse hsh hsk hss hsw hw- hwa hwb hwe hwk hws hww ka- kaa kab kac kae kah kak kas kaw kba kbb kbc kbe kbh kbk kbs kbw kca kcb kcc kce kch kck kcs ke- kea keb kec kee keh kek kes kew kha khe khh khk khs kkb kkc kke kkh kkk kks ksa ksb ksc kse ksh ksk kss ksw kw- kwa kwc kwh kwk kws kww saa sab sac sae sah sak sas saw sba sbb sbc sbe sbh sbk sbs sbw sca scb scc sce sch sck scs scw se- sea seb sec see seh sek ses sew sh- sha shb shc she shh shk shs sk- ska skb skc ske skh skk sks skw ss- ssa ssb ssc sse ssh ssk sss ssw swa swb swc swe swh swk sws waa wab wac wae wah wak was waw wba wbb wbc wbe wbs wbw wca wcb wcc wce wch wck wcs wcw wea web wec wee weh wek wes wew wh- wha whb whc whh whk whs whw wka wkb wkc wke wks wkw wsa wsb wsc wse wsh wsk wss wsw wwa wwc wwe www