C11111333133313232233133313331333131133131121131211113323213331333132313112111   >>    C1111133313331323223313331333133313113313112113121111332321333133313231311211   <<    C11111333133313232233133313331333131133131121131211113323213331333132313112113   >>      C11111333133313232233133313331333131133131121131211113323213331333132313112112   >>