C11111333133313232233133313331333133313331312111133133312111133133313332232311   >>    C1111133313331323223313331333133313331333131211113313331211113313331333223231   <<    C11111333133313232233133313331333133313331312111133133312111133133313332232313   >>      C11111333133313232233133313331333133313331312111133133312111133133313332232312   >>