C132233133112121111331333133312111133132311233133313231333132212131   >>    C13223313311212111133133313331211113313231123313331323133313221213   <<    C132233133112121111331333133312111133132311233133313231333132212133   >>      C132233133112121111331333133312111133132311233133313231333132212132   >>