C1111133313331323223313331333133313231333132332131333112211232333131   >>    C111113331333132322331333133313331323133313233213133311221123233313   <<    C1111133313331323223313331333133313231333132332131333112211232333133   >>      C1111133313331323223313331333133313231333132332131333112211232333132   >>