C1111133313331323223313331333133313231333132332131333133313223212331   >>    C111113331333132322331333133313331323133313233213133313331322321233   <<    C1111133313331323223313331333133313231333132332131333133313223212333   >>      C1111133313331323223313331333133313231333132332131333133313223212332   >>