C132233133112121111331333133312111133132311233133313231323221221   >>    C13223313311212111133133313331211113313231123313331323132322122   <<    C132233133112121111331333133312111133132311233133313231323221223   >>      C132233133112121111331333133312111133132311233133313231323221222   >>