C313212111133131211331333133313331333133311233133313221211113313133311212311   >>    C31321211113313121133133313331333133313331123313331322121111331313331121231   <<    C313212111133131211331333133313331333133311233133313221211113313133311212313   >>      C313212111133131211331333133313331333133311233133313221211113313133311212312   >>