C11111333133313232233133313331333132313331323321313331333132322121111332321311   >>    C1111133313331323223313331333133313231333132332131333133313232212111133232131   <<    C11111333133313232233133313331333132313331323321313331333132322121111332321313   >>      C11111333133313232233133313331333132313331323321313331333132322121111332321312   >>