C313212111133131211331333133313331333133311233133313232213133311   >>    C31321211113313121133133313331333133313331123313331323221313331   <<    C313212111133131211331333133313331333133311233133313232213133313   >>      C313212111133131211331333133313331333133311233133313232213133312   >>