C313212111133131211331333133313331333133311233133313223313232321311321   >>    C31321211113313121133133313331333133313331123313331322331323232131132   <<    C313212111133131211331333133313331333133311233133313223313232321311323   >>      C313212111133131211331333133313331333133311233133313223313232321311322   >>