b-u bbb bbf bbh bbi bbs bbu bfb bff bfh bfi bfs bfu bhb bhf bhh bhi bhs bhu bi- bib bif bih bii bis biu bsb bsf bsh bsi bss bsu bub buf buh bui bus buu fbb fbf fbh fbi fbs fbu fff ffh ffi ffs ffu fhb fhf fhh fhi fhs fib fif fih fii fis fiu fsb fsf fsh fsi fss fsu fub fuf fui fus fuu h-i hbb hbf hbh hbi hbs hbu hfb hff hfh hfi hfs hfu hhb hhf hhh hhi hhs hhu hib hif hih hii his hiu hsb hsf hsh hsi hss hsu hub huf huh hui hus huu i-f ibb ibf ibh ibi ibs ibu ifb iff ifi ifs ifu ihb ihf ihh ihi ihs ihu iib iif iih iii iis iiu is- isb isf ish isi iss isu iu- iub iui ius sbb sbf sbh sbi sbs sbu sfb sff sfh sfi sfs sfu sh- shb shf shh shi shs shu sib sif sih sii sis siu ss- ssb ssf ssh ssi sss ssu sub suf suh sui sus suu ubb ubf ubh ubi ubs ubu uff ufh ufi ufs ufu uhb uhf uhh uhi uhs uhu uib uif uii uis uiu usb usf ush usi uss usu uus uuu