C11111333133313232233133313331333133313332322331331121111122131   >>    C1111133313331323223313331333133313331333232233133112111112213   <<    C11111333133313232233133313331333133313332322331331121111122133   >>      C11111333133313232233133313331333133313332322331331121111122132   >>