C313212111133131211331333133313331333133311233133313133223323311   >>    C31321211113313121133133313331333133313331123313331313322332331   <<    C313212111133131211331333133313331333133311233133313133223323313   >>      C313212111133131211331333133313331333133311233133313133223323312   >>