C11111333133313232233133313331333133313331312111113231333133313133111   >>    C1111133313331323223313331333133313331333131211111323133313331313311   <<    C11111333133313232233133313331333133313331312111113231333133313133113   >>      C11111333133313232233133313331333133313331312111113231333133313133112   >>