C1111133313331323223313331333133313231333132332131333133313231322231121231   >>    C111113331333132322331333133313331323133313233213133313331323132223112123   <<    C1111133313331323223313331333133313231333132332131333133313231322231121233   >>      C1111133313331323223313331333133313231333132332131333133313231322231121232   >>