C11111333133313232233133313331333132313331323321313331333132213233312111   >>    C1111133313331323223313331333133313231333132332131333133313221323331211   <<    C11111333133313232233133313331333132313331323321313331333132213233312113   >>      C11111333133313232233133313331333132313331323321313331333132213233312112   >>