C1111133313331323223313331333133313231333132332131333133313331333121322311   >>    C111113331333132322331333133313331323133313233213133313331333133312132231   <<    C1111133313331323223313331333133313231333132332131333133313331333121322313   >>      C1111133313331323223313331333133313231333132332131333133313331333121322312   >>