C312312111111331312111133133313331333133313232233133313331333133313231323223111   >>    C31231211111133131211113313331333133313331323223313331333133313331323132322311   <<    C312312111111331312111133133313331333133313232233133313331333133313231323223113   >>      C312312111111331312111133133313331333133313232233133313331333133313231323223112   >>