C313212111133131211331333133313331333133311233133313332212131211   >>    C31321211113313121133133313331333133313331123313331333221213121   <<    C313212111133131211331333133313331333133311233133313332212131213   >>      C313212111133131211331333133313331333133311233133313332212131212   >>