C313212111133131211331333133313331333133311233133313233313232233133313113233231   >>    C31321211113313121133133313331333133313331123313331323331323223313331311323323   <<    C313212111133131211331333133313331333133311233133313233313232233133313113233233   >>      C313212111133131211331333133313331333133311233133313233313232233133313113233232   >>