C1111133313331323223313331333133313231333132332131333132331232311   >>    C111113331333132322331333133313331323133313233213133313233123231   <<    C1111133313331323223313331333133313231333132332131333132331232313   >>      C1111133313331323223313331333133313231333132332131333132331232312   >>