C132233133112121111331333133313231333133313231211113313232233132322123231   >>    C13223313311212111133133313331323133313331323121111331323223313232212323   <<    C132233133112121111331333133313231333133313231211113313232233132322123233   >>      C132233133112121111331333133313231333133313231211113313232233132322123232   >>