ffff ffrr fftf fofo foof foot for- foro forr fort foto fott foty foyt frot ftfy fyry off- offo offr offy ofor ooff oofy oooo oort oory ooty orff oro- orof oror orot oroy orro orry orto oto- otof otoo otor otoy otro otry otto otyr roff rofo roof roor root roro rort rory roto rotr rott roty royt rrrr ryff ryft ryot rytt ryyf ryyt tfot to-y toff tofo toft toof toor toot torf toro torr tort tory toto totr tott toty toyo toyt trfr troo trot troy trtr try- tryo ttff ttoy tttt tyff tyft tyr- tyrf tyro tyrr tyto tytt tyty yoff yoof yoot yoro yort yory yott yoyo yrof yyff yyyy