1xy2 2xy2o 3xy2or 4xy2 5xy2o
qoz2o roz2or soz2 toz2o uoz2or
ff02or gf02 hf02o if02or jf02
4502 5502o 6502or 7502 8502o
tw12o uw12or vw12 ww12o xw12or