C11111333133313232233133313331333131133132313311211113311331333231323311   >>    C1111133313331323223313331333133313113313231331121111331133133323132331   <<    C11111333133313232233133313331333131133132313311211113311331333231323313   >>      C11111333133313232233133313331333131133132313311211113311331333231323312   >>