upust[11], spust[9],
tupu[10], stup[8], usus[8], tuss[7],
tup[7], psu[6], spu[6], stu[6], ust[6], pst[5], sus[5], pss[4], tss[4],
uu[6], tu[5], ut[5], su[4], ts[3],
