-ic b-u bbb bbc bbd bbi bbk bbm bbr bbs bbu bcb bcc bcd bci bck bcm bcr bcs bcu bdb bdc bdd bdi bdk bdm bdr bds bdu bi- bib bic bid bii bik bim bir bis biu bkb bkc bkk bkm bkr bks bmb bmc bmd bmi bmk bmm bmr bms bmu brb brd bri brk brm brr brs bru bsb bsc bsd bsi bsk bsm bsr bss bsu bub buc bud bui buk bum bur bus buu c-- cbb cbc cbd cbi cbk cbm cbr cbs cbu ccb ccc ccd cci cck ccm ccr ccs ccu cdb cdc cdd cdi cdk cdm cdr cds cdu ci- cib cic cid cii cik cim cir cis ciu ckb ckc ckd cki ckm cks cmb cmc cmd cmi cmk cmm cmr cms cmu crb crc crd cri crk crm crr crs cru csb csc csd csi csk csm csr css csu cub cuc cud cui cuk cum cur cus cuu dbb dbc dbd dbi dbk dbm dbr dbs dbu dcb dcc dcd dci dck dcm dcr dcs dcu ddb ddc ddd ddi ddk ddm ddr dds ddu di- dib dic did dii dik dim dir dis diu dkb dkc dki dkk dkm dkr dks dku dmb dmc dmd dmi dmk dmm dmr dms dmu drb drc drd dri drk drm drr drs dru dsb dsc dsd dsi dsk dsm dsr dss dsu dub duc dud dui duk dum dur dus i-d ibb ibc ibd ibi ibk ibm ibr ibs ibu icb icc icd ici ick icm icr ics icu idb idc idd idi idk idm idr ids idu iib iic iid iii iim iir iis iiu ikb ikc iki ikk ikr iks iku im- imb imc imd imi imm ims imu ir- irb irc ird iri irk irm irr irs iru is- isb isc isd isi isk ism isr iss isu iu- iub iuc iud iui ium iur ius kbb kbc kbd kbi kbk kbm kbr kbs kbu kcb kcc kcd kci kck kcm kcr kcs kcu kdb kdc kdk kdm kdr kds kdu kib kic kid kii kik kim kir kis kiu kkb kkc kki kkk kkm kkr kks kku kmb kmc kmd kmi kmk kmm kms kmu krc krd kri krk krr krs kru ksb ksc ksd ksi ksk ksm ksr kss ksu kub kuc kud kui kuk kum kur kus kuu m-r mbb mbc mbd mbi mbk mbm mbr mbs mbu mc- mcb mcc mcd mci mck mcm mcr mcs mcu mdb mdc mdd mdi mdk mdm mdr mds mdu mi- mib mic mid mii mik mim mir mis miu mkb mkc mkd mkk mkm mkr mks mku mmb mmc mmd mmi mmk mmm mmr mms mmu mrb mrc mrd mri mrk mrm mrr mrs mru msb msc msd msi msk msm msr mss msu mub muc mud mui muk mum mur mus muu rbb rbc rbd rbi rbk rbm rbr rbs rbu rcb rcc rcd rci rcm rcr rcs rcu rdb rdc rdd rdi rdm rdr rds rdu rib ric rid rii rik rim rir ris rkb rkc rkk rkm rks rku rmb rmc rmd rmi rmm rmr rms rrb rrc rrd rri rrk rrm rrr rrs rru rsb rsc rsd rsi rsk rsm rsr rss rsu rub ruc rud rui ruk rum rur rus ruu sbb sbc sbd sbi sbk sbm sbr sbs sbu scb scc scd sci sck scm scr scs scu sdb sdc sdd sdi sdk sdm sdr sds sdu sib sic sid sii sik sim sir sis siu sk- skb skc skd ski skk skm skr sks sku smb smc smd smi smk smm smr sms smu sr- srb src srd sri srk srm srr srs ss- ssb ssc ssd ssi ssk ssm ssr sss ssu sub suc sud sui suk sum sur sus suu ubb ubc ubi ubk ubr ubs ubu ucb ucc ucd uci uck ucm ucr ucs ucu udb udc udd udi udk udm udr uds udu uib uic uid uii uim uir uis uiu ukb ukc uki ukk ukr uku um- umb umc umd umi umm umr ums umu ur- urb urc urd uri urk urm urr urs uru usb usc usd usi usk usm usr uss usu uuc uum uur uus uuu