C11111333133313232233133313331333132313331323321313331333133313113121111122211   >>    C1111133313331323223313331333133313231333132332131333133313331311312111112221   <<    C11111333133313232233133313331333132313331323321313331333133313113121111122213   >>      C11111333133313232233133313331333132313331323321313331333133313113121111122212   >>