C11111333133313232233133313331333132313331323321313331333133313113121111122221   >>    C1111133313331323223313331333133313231333132332131333133313331311312111112222   <<    C11111333133313232233133313331333132313331323321313331333133313113121111122223   >>      C11111333133313232233133313331333132313331323321313331333133313113121111122222   >>