C3123223313331322121111331333133313331333121211113313231331122211   >>    C312322331333132212111133133313331333133312121111331323133112221   <<    C3123223313331322121111331333133313331333121211113313231331122213   >>      C3123223313331322121111331333133313331333121211113313231331122212   >>