C111113331333132322331333133313331311331333113313232213231311211   >>    C11111333133313232233133313331333131133133311331323221323131121   <<    C111113331333132322331333133313331311331333113313232213231311213   >>      C111113331333132322331333133313331311331333113313232213231311212   >>