fff ffo ffr fft ffz fof foo for fot foz frf fro frr frt ftf fto ftr ftt ftz of- off ofo ofr oft ofz oo- oof ooo oor oot or- orf oro orr ort orz ot- otf oto otr ott otz ozo ozt ozz rff rfo rfr rft rfz rof roo ror rot roz rrf rrr rrt rtf rto rtr rtt rtz rzo tff tfo tfr tft to- tof too tor tot toz trf tro trr trt trz ttf tto ttr ttt tzf zfr zo- zof zoo zor zot zro ztr zzr zzt zzz

ffff ffrr fftf fofo foof foot for- foro forr fort foto fott frot fzzt off- offo offr ofor ofoz ooff oooo oort orff oro- orof oror orot oroz orro orto orzo oto- otof otoo otor otro otto roff rofo roof roor root rooz roro rort roto rotr rott rozz rrrr tfot toff tofo toft toof toor toot torf toro torr tort toto totr tott tozo trfr troo trot trtr ttff tttt tzzt z-ro zoff zoo- zoot zoro zort zott zotz zozo zzzz

forro forto froot ftrtt offof offto ofoto ooooo orfor ortoo ototo ozoro ro-ro rofor rooft roto- rotor rotot rotto rotz rotzo toffo tofor torro torto toto- totoo troff troft trooz trott ttttt zorro zotto zzzzz

foofoo forrot oftfor oofotr oooooo ottoor rootof to-fro tootoo toozoo tororo tortor totoro totrot trotro zoozoo zorzor

foo-foo footrot forroot off-off ofzorro orzotto ottrott rootfor rootrot too-too tototoo tro-tro trotoff

toottoot torotoro

footforfoot