C313212111133131211331333133313331333133311233133313221333223311   >>    C31321211113313121133133313331333133313331123313331322133322331   <<    C313212111133131211331333133313331333133311233133313221333223313   >>      C313212111133131211331333133313331333133311233133313221333223312   >>