fff ffo ffr ffs ffz fof foo for fos foz frf fro frr frs fsf fso fsr fss of- off ofo ofr ofs ofz oo- oof ooo oor oos or- orf oro orr ors orz os- osf oso osr oss ozo ozs ozz rff rfo rfr rfs rfz rof roo ror ros roz rrf rrr rrs rsf rso rsr rss rzo sff sfo sfr sfs sfz sof soo sor sos soz sr- srf sro srr srs ss- ssf sso ssr sss ssz szr zfr zfs zo- zof zoo zor zos zro zrs zsz zzr zzs zzz

ffff ffrr ffss fofo foof foos for- foro forr fors foso foss fros frso fsfo fssf off- offo offr offs ofor ofoz ooff oofs oooo ooos orff orfs oro- orof oror oros oroz orro orrs orso orzo osoo osor osos osro osso roff rofo roof roor roos rooz roro roso ross rozz rrrr rsos s-os sfor sfos sfro sfss sofo soof soor soos soro sorr sors soso soss soz- sros ssrs sssf ssss szss z-ro zoff zoo- zoos zoro zors zoso zoss zozo zsss zzzs zzzz

fofos foros forro forso forss offof ooooo orfor oroso orosz orzos ososo ossos ozoro ro-ro rofor roofs rosso rosss rsssf s-o-r so-so soror soros sorso soss- sozo- sroof sssss zorro zzzzz

foofoo forros fosso fossor oooooo rofors rososz rozofs soosoo sorors sorsor sssfrs zoozoo zorros zorzor

foo-foo fossors off-off ofzorro sorfors sssssss zoozoos