C1111133313331323223313331333133313231333132332131333132313231333223313111   >>    C111113331333132322331333133313331323133313233213133313231323133322331311   <<    C1111133313331323223313331333133313231333132332131333132313231333223313113   >>      C1111133313331323223313331333133313231333132332131333132313231333223313112   >>