C111113331333132322331333133313331311331311331323133313113313231311211311   >>    C11111333133313232233133313331333131133131133132313331311331323131121131   <<    C111113331333132322331333133313331311331311331323133313113313231311211313   >>      C111113331333132322331333133313331311331311331323133313113313231311211312   >>