C11111333133313232233133313331333131133132313311211113313123133311   >>    C1111133313331323223313331333133313113313231331121111331312313331   <<    C11111333133313232233133313331333131133132313311211113313123133313   >>      C11111333133313232233133313331333131133132313311211113313123133312   >>