a-a a-b a-c aaa aab aac aae aah aan aaw ab- aba abb abc abe abh abn abw ac- aca acb acc ace ach acn acw aea aeb aec aee aeh aen aew aha ahb ahc ahe ahh ahn ahw an- ana anb anc ane anh ann aw- awa awb awc awe awh awn aww baa bab bac bae bah ban baw bba bbb bbc bbe bbh bbn bbw bca bcb bcc bce bch bcn be- bea beb bec bee beh ben bew bha bhb bhc bhe bhh bhw bna bnb bnc bne bnn bnw bwa bwb bwc bwh c-- caa cab cac cae cah can caw cba cbb cbc cbe cbh cbn cbw cca ccb ccc cce cch ccn ccw ce- cea ceb cec cee ceh cen cew ch- cha chb chc che chh chn chw cn- cna cnb cnc cne cnh cnn cnw cw- cwa cwb cwc cwe cwh cwn eaa eab eac eae eah ean eaw eba ebb ebc ebe ebh ebn ebw ec- eca ecb ecc ece ech ecn ecw eea eeb eec eee een eew eha ehb ehc ehe ehh ehn en- ena enb enc ene enh enn enw ewa ewb ewc ewe eww haa hab hac hae hah han haw hba hbb hbc hbe hbh hbn hbw hca hcb hcc hce hch hcn hcw he- hea heb hec hee heh hen hew hha hhb hhc hhe hhh hhn hhw hna hnb hnc hne hnh hnn hnw hw- hwa hwb hwe hwn hww naa nab nac nae nah nan naw nba nbb nbc nbe nbn nbw nca ncb ncc nce nch ncn ncw ne- nea neb nec nee neh nen new nha nhb nhc nhe nhh nhn nna nnb nnc nne nnh nnn nnw nwa nwb nwc nwe nwn waa wab wac wae wah wan waw wba wbb wbc wbe wbn wbw wca wcb wcc wce wch wcn wcw wea web wec wee weh wen wew wh- wha whb whc whh whw wn- wna wnc wne wnn wnw wwa wwc wwe wwn www