List alignment issue

Hello,

I am dealing with a list alignment issue in Grasshopper. In essence I am trying to displace and incrementally rotate a set of (here, 10) contour curves of a cube around the centroid of the cube. It is working out well in the x-direction, but when I continue in the y-direction, the list alignment seem to unravel. As I am quite new in GH, I am struggling with troubleshooting and understanding how I can go about realigning the lists. Any input would be much appreciated!