b-u bbb bbd bbi bbo bbq bbr bbs bbt bbu bdb bdd bdi bdo bdq bdr bds bdt bdu bi- bib bid bii bio bir bis bit biu bob bod boi boo boq bor bos bot bou bqd bqt brb brd bri bro brq brr brs brt bru bsb bsd bsi bso bsr bss bst bsu btb btd bti bto btq btr bts btt btu bub bud bui buo bur bus but buu dbb dbd dbi dbo dbq dbr dbs dbt dbu ddb ddd ddi ddo ddq ddr dds ddt ddu di- dib did dii dio diq dir dis dit diu dob dod doi doo doq dor dos dot dou dqs drb drd dri dro drq drr drs drt dru dsb dsd dsi dso dsq dsr dss dst dsu dtb dtd dti dto dtr dts dtt dtu dub dud dui duo dur dus dut i-d ibb ibd ibi ibo ibr ibs ibt ibu idb idd idi ido idq idr ids idt idu iib iid iii iio iir iis iit iiu io- iob iod ioi ioo ior ios iot iou iqd iqs iqt iqu ir- irb ird iri iro irq irr irs irt iru is- isb isd isi iso isq isr iss ist isu itb itd iti ito itq its itt itu iu- iub iud iui iur ius iut o-i ob- obb obd obi obo obr obs obt obu odb odd odi odo odr ods odt odu oib oid oii oio oir ois oit oiu oo- oob ood ooi ooo oor oos oot oqb oqo or- orb ord ori oro orr ors ort oru os- osb osd osi oso osq osr oss ost osu ot- otb otd oti oto otr ots ott otu ou- oud oui ouo our ous out qbd qbq qbs qdb qdr qds qdt qid qio qir qis qit qiu qoi qoo qor qos qqq qqu qrb qri qrs qrt qru qsd qsi qso qsr qst qtd qti qto qtq qtr qts qu- qud qui quo qur qus qut rbb rbd rbi rbo rbr rbs rbt rbu rdb rdd rdi rdo rdr rds rdt rdu rib rid rii rio riq rir ris rit rob rod roi roo ror ros rot rou rqs rrb rrd rri rrq rrr rrs rrt rru rsb rsd rsi rso rsq rsr rss rst rsu rtb rtd rti rto rtq rtr rts rtt rtu rub rud rui ruo rur rus rut ruu sbb sbd sbi sbo sbq sbr sbs sbt sbu sdb sdd sdi sdo sdq sdr sds sdt sdu sib sid sii sio siq sir sis sit siu sob sod soi soo soq sor sos sot sou sqd sqi sqq sqr sqs sr- srb srd sri sro srq srr srs srt ss- ssb ssd ssi sso ssq ssr sss sst ssu stb std sti sto stq str sts stt stu sub sud sui suo suq sur sus sut suu tbb tbd tbi tbo tbr tbs tbt tbu tdb tdd tdi tdo tdr tds tdt tdu tib tid tii tio tir tis tit tiu to- tob tod toi too toq tor tos tot tou tqo trb trd tri tro trq trr trs trt tru tsb tsd tsi tso tsq tsr tss tst tsu ttb ttd tti tto ttr tts ttt ttu tub tud tui tuo tur tus tut tuu ubb ubi ubo ubr ubs ubt ubu udb udd udi udo udr uds udt udu uib uid uii uio uiq uir uis uit uiu uob uod uoo uor uos uot ur- urb urd uri uro urr urs urt uru usb usd usi uso usr uss ust usu utb utd uti uto utr uts utt utu uur uus uut uuu