b-u bbb bbd bbi bbl bbm bbs bbu bdb bdd bdi bdl bdm bds bdu bi- bib bid bii bil bim bis biu blb bld bli bll blm bls blu bmb bmd bmi bml bmm bms bmu bsb bsd bsi bsl bsm bss bsu bub bud bui bul bum bus buu dbb dbd dbi dbl dbm dbs dbu ddb ddd ddi ddl ddm dds ddu di- dib did dii dil dim dis diu dl- dlb dld dli dll dlm dls dlu dmb dmd dmi dml dmm dms dmu dsb dsd dsi dsl dsm dss dsu dub dud dui dul dum dus i-d ibb ibd ibi ibl ibm ibs ibu idb idd idi idl idm ids idu iib iid iii iil iim iis iiu il- ilb ild ili ill ilm ils ilu im- imb imd imi iml imm ims imu is- isb isd isi isl ism iss isu iu- iub iud iui ium ius lbb lbd lbi lbl lbm lbs lbu ldb ldd ldi ldl ldm lds ldu lib lid lii lil lim lis liu llb lld lli lll llm lls llu lmb lmd lmi lml lmm lms lmu lsb lsd lsi lsl lsm lss lsu lub lud lui lul lum lus luu mbb mbd mbi mbl mbm mbs mbu mdb mdd mdi mdl mdm mds mdu mi- mib mid mii mil mim mis miu mlb mld mli mll mlm mls mlu mmb mmd mmi mml mmm mms mmu msb msd msi msl msm mss msu mub mud mui mul mum mus muu sbb sbd sbi sbl sbm sbs sbu sdb sdd sdi sdl sdm sds sdu sib sid sii sil sim sis siu slb sld sli sll slm sls slu smb smd smi sml smm sms smu ss- ssb ssd ssi ssl ssm sss ssu sub sud sui sul sum sus suu ubb ubi ubl ubs ubu udb udd udi udl udm uds udu uib uid uii uil uim uis uiu ulb uld uli ull ulm uls ulu um- umb umd umi uml umm ums umu usb usd usi usl usm uss usu uum uus uuu