-th fff ffh ffo ffs fft ffu fhf fhh fho fhs fof foh foo fos fot fou fsf fsh fso fss fst fsu ftf fth fto fts ftt ftu fuf fuo fus fut fuu hff hfh hfo hfs hft hfu hhf hhh hho hhs hht hhu hof hoh hoo hos hot hou hsf hsh hss hst hsu htf hth hto hts htt huf huh huo hus hut huu of- off ofo ofs oft ofu ohf ohh oho ohs oht ohu oo- oof ooh ooo oos oot os- osf osh oso oss ost osu ot- otf oth oto ots ott otu ou- ouf ouh ouo ous out sff sfh sfo sfs sft sfu sh- shf shh sho shs sht shu sof soh soo sos sot sou ss- ssf ssh sso sss sst ssu stf sth sto sts stt stu suf suh suo sus sut suu tff tfh tfo tfs tft tfu th- thf thh tho ths tht thu to- tof toh too tos tot tou tsf tsh tso tss tst tsu ttf tth tto tts ttt ttu tuf tuh tuo tus tut tuu uff ufh ufo ufs uft ufu uhf uhh uho uhs uht uhu uoo uos uot usf ush uso uss ust usu utf uth uto uts utt utu uus uut uuu