C313212111133131211331333133313331333133311233133313332321311223131   >>    C31321211113313121133133313331333133313331123313331333232131122313   <<    C313212111133131211331333133313331333133311233133313332321311223133   >>      C313212111133131211331333133313331333133311233133313332321311223132   >>