a-a a-b a-c aaa aab aac aae aah aaw ab- aba abb abc abe abh abw ac- aca acb acc ace ach acw aea aeb aec aee aeh aew aha ahb ahc ahe ahh ahw aw- awa awb awc awe awh aww baa bab bac bae bah baw bba bbb bbc bbe bbh bbw bca bcb bcc bce bch be- bea beb bec bee beh bew bha bhb bhc bhe bhh bhw bwa bwb bwc bwh c-- caa cab cac cae cah caw cba cbb cbc cbe cbh cbw cca ccb ccc cce cch ccw ce- cea ceb cec cee ceh cew ch- cha chb chc che chh chw cw- cwa cwb cwc cwe cwh eaa eab eac eae eah eaw eba ebb ebc ebe ebh ebw ec- eca ecb ecc ece ech ecw eea eeb eec eee eew eha ehb ehc ehe ehh ewa ewb ewc ewe eww haa hab hac hae hah haw hba hbb hbc hbe hbh hbw hca hcb hcc hce hch hcw he- hea heb hec hee heh hew hha hhb hhc hhe hhh hhw hw- hwa hwb hwe hww waa wab wac wae wah waw wba wbb wbc wbe wbw wca wcb wcc wce wch wcw wea web wec wee weh wew wh- wha whb whc whh whw wwa wwc wwe www