C11111333133313232233133313331333133313331312111133133312323131   >>    C1111133313331323223313331333133313331333131211113313331232313   <<    C11111333133313232233133313331333133313331312111133133312323133   >>      C11111333133313232233133313331333133313331312111133133312323132   >>