C1111133313331323223313331333133313113313133112111111211312112111   >>    C111113331333132322331333133313331311331313311211111121131211211   <<    C1111133313331323223313331333133313113313133112111111211312112113   >>      C1111133313331323223313331333133313113313133112111111211312112112   >>