-th fff ffh ffs fft ffu fhf fhh fhs fsf fsh fss fst fsu ftf fth fts ftt ftu fuf fus fut fuu hff hfh hfs hft hfu hhf hhh hhs hht hhu hsf hsh hss hst hsu htf hth hts htt huf huh hus hut huu sff sfh sfs sft sfu sh- shf shh shs sht shu ss- ssf ssh sss sst ssu stf sth sts stt stu suf suh sus sut suu tff tfh tfs tft tfu th- thf thh ths tht thu tsf tsh tss tst tsu ttf tth tts ttt ttu tuf tuh tus tut tuu uff ufh ufs uft ufu uhf uhh uhs uht uhu usf ush uss ust usu utf uth uts utt utu uus uut uuu