C11111333133313232233133313331333133313331312111133133311331333132311   >>    C1111133313331323223313331333133313331333131211113313331133133313231   <<    C11111333133313232233133313331333133313331312111133133311331333132313   >>      C11111333133313232233133313331333133313331312111133133311331333132312   >>