C1111133313331323223313331333133313331323131211113313113313233313222332112331   >>    C111113331333132322331333133313331333132313121111331311331323331322233211233   <<    C1111133313331323223313331333133313331323131211113313113313233313222332112333   >>      C1111133313331323223313331333133313331323131211113313113313233313222332112332   >>