bbb bbf bbi bbs bfb bff bfi bfs bfz bi- bib bif bii bis biz bsb bsf bsi bss bzf bzs bzz fbb fbf fbi fbs fff ffi ffs ffz fib fif fii fis fiz fsb fsf fsi fss i-f ibb ibf ibi ibs ibz ifb iff ifi ifs ifz iib iif iii iis is- isb isf isi iss izi izz sbb sbf sbi sbs sfb sff sfi sfs sfz sib sif sii sis ss- ssb ssf ssi sss ssz szi zbb zbs zfs zib zif zis ziz zsi zsz zzs zzz

bbbb bbbs bffs bfsi bibb bibi bibs biff bifi biis bis- biss bizz bsff bsfs bzzz fbis ffff ffii ffss fibs fiff fifi fiii fisi fiss fisz fizz fsfi fssf ibfi ibis ibsf ibss ifbb ifis ifsb iiii iiis iisi isis issf issi isss s-ib s-ii sbbs sbsi sfss sibi sibs siff sisi siss sizz ssis sssb sssf sssi ssss szis szss ziff zisi zizi zizz zsss zzzs zzzz

bibbs bibis biffi biffs bisfi bizzi fibis fissi if-- iiiii is-is isisi s-iii sisis sissi sssss zibib zizzi zzzzz

bbbbbb fissi- siiiii sisisi

bbbbbbb bissibi sssssss

bbbbbbbb i-ii-iii

issisisis

bbbbbbbbbbbbbbb bzzzzzzzzzzzzzz

iiiiiiiiiiiiiiiis