C11111333133313232233133313331333132313331323321313331333132212323132311   >>    C1111133313331323223313331333133313231333132332131333133313221232313231   <<    C11111333133313232233133313331333132313331323321313331333132212323132313   >>      C11111333133313232233133313331333132313331323321313331333132212323132312   >>