C11111333133313232233133313331333131133132313311211113313233331311   >>    C1111133313331323223313331333133313113313231331121111331323333131   <<    C11111333133313232233133313331333131133132313311211113313233331313   >>      C11111333133313232233133313331333131133132313311211113313233331312   >>