fff ffh ffo ffr ffu ffy fhf fhh fho fhr fof foh foo for fou foy frf frh fro frr fru fry fuf fuo fur fuu fy- fyo hff hfh hfo hfr hfu hfy hhf hhh hho hhr hhu hhy hof hoh hoo hor hou hoy hr- hrf hrh hro hrr hru huf huh huo hur huu huy hy- hyh hyo hyr hyy of- off ofo ofr ofu ohf ohh oho ohr ohu oo- oof ooh ooo oor or- orf orh oro orr oru ory ou- ouf ouh ouo our oyo rff rfh rfo rfr rfu rh- rhf rhh rho rhr rhu rof roh roo ror rou roy rrf rrh rrr rru ruf ruh ruo rur ruu ruy ry- ryf ryo ryr ryu ryy uff ufh ufo ufr ufu uhf uhh uho uhr uhu uhy uoo uor ur- urf uro urr uru ury uur uuu uyo uyu yff yfr yfu yhu yof yoo yor you yoy yrf yro yru yuh yuo yur yuu yuy yyf yyu yyy