C11111333133313232233133313331333133313332322331331121111131121211   >>    C1111133313331323223313331333133313331333232233133112111113112121   <<    C11111333133313232233133313331333133313332322331331121111131121213   >>      C11111333133313232233133313331333133313332322331331121111131121212   >>