b-u bbb bbe bbk bbo bbq bbt bbu be- beb bee bek beo beq bet beu bkb bke bkk bko bkq bkt bob boe bok boo boq bot bou bqe bqt btb bte btk bto btq btt btu bub bue buk buo but buu ebb ebe ebk ebo ebq ebt ebu eeb eee eek eeo eet ekb eke eko ekt eku eo- eob eoe eok eoo eoq eot eou eqe eqq eqt equ etb ete etk eto ett etu eu- eub eue eut k-t kbb kbe kbk kbo kbu ke- keb kee kek keo ket kkb kke kkk kkt kku kob koe kok koo kot kou ktb kte ktk kto ktt ktu kub kue kuk kut kuu ob- obb obe obk obo obt obu oeb oee oeo oet okb oke okk oko oku oo- oob ook ooo oot oqb oqo ot- otb ote otk oto ott otu ou- oue ouk ouo out qbe qbq qee qeo qet qoo qqk qqq qqu qto qtq qu- que quo qut tbb tbe tbk tbo tbt tbu te- teb tee tek teo teq tet teu tkb tke tkk tko tkt to- tob toe tok too toq tot tou tqo ttb tte ttk tto ttt ttu tub tue tuk tuo tut tuu ubb ube ubk ubo ubt ubu ueb uee uet ukb uke ukk uku uob uoe uok uoo uot utb ute utk uto utt utu uue uut uuu