0l90xi 1l90 2l90x 3l90xi 4l90

pca1 qca1x rca1xi sca1 tca1x

e3a1x f3a1xi g3a1 h3a1x i3a1xi

3tb1xi 4tb1 5tb1x 6tb1xi 7tb1

skc1 tkc1x ukc1xi vkc1 wkc1x