C3123223313331322121111331333133313231333132212111111221123221312311   >>    C312322331333132212111133133313331323133313221211111122112322131231   <<    C3123223313331322121111331333133313231333132212111111221123221312313   >>      C3123223313331322121111331333133313231333132212111111221123221312312   >>