C313212111133131211331333133313331333133313331333133313231333133313123222332311   >>    C31321211113313121133133313331333133313331333133313331323133313331312322233231   <<    C313212111133131211331333133313331333133313331333133313231333133313123222332313   >>      C313212111133131211331333133313331333133313331333133313231333133313123222332312   >>