C11111333133313232233133313331333133313331311331333132313231322311   >>    C1111133313331323223313331333133313331333131133133313231323132231   <<    C11111333133313232233133313331333133313331311331333132313231322313   >>      C11111333133313232233133313331333133313331311331333132313231322312   >>