C1111133313331323223313331333133313231333132332131333133313131211   >>    C111113331333132322331333133313331323133313233213133313331313121   <<    C1111133313331323223313331333133313231333132332131333133313131213   >>      C1111133313331323223313331333133313231333132332131333133313131212   >>