b-u bbb bbe bbi bbo bbq bbs bbu be- beb bee bei beo beq bes beu bi- bib bie bii bio bis biu bob boe boi boo boq bos bou bqe bsb bse bsi bso bss bsu bub bue bui buo bus buu ebb ebe ebi ebo ebq ebs ebu eeb eee eeo ees eib eie eii eio eis eiu eo- eob eoe eoi eoo eoq eos eou eqe eqq eqs equ es- esb ese esi eso esq ess esu eu- eub eue eui eus ibb ibe ibi ibo ibs ibu ie- iee iei ies iib iie iii iio iis iiu io- iob ioe ioi ioo ios iou iqe iqs iqu is- isb ise isi iso isq iss isu iu- iub iue iui ius o-i ob- obb obe obi obo obs obu oeb oee oei oeo oes oib oie oii oio ois oiu oo- oob ooi ooo oos oqb oqo os- osb ose osi oso osq oss osu ou- oue oui ouo ous qbe qbq qbs qee qeo qie qio qis qiu qoi qoo qos qqq qqu qsi qso qu- que qui quo qus sbb sbe sbi sbo sbq sbs sbu se- seb see sei seo seq ses seu sib sie sii sio siq sis siu sob soe soi soo soq sos sou sqi sqq sqs ss- ssb sse ssi sso ssq sss ssu sub sue sui suo suq sus suu ubb ube ubi ubo ubs ubu ueb uee uei ues uib uie uii uio uiq uis uiu uob uoe uoo uos usb use usi uso uss usu uue uus uuu