C3123223313331322121111331333133313231333132212111133132233132212111   >>    C312322331333132212111133133313331323133313221211113313223313221211   <<    C3123223313331322121111331333133313231333132212111133132233132212113   >>      C3123223313331322121111331333133313231333132212111133132233132212112   >>