C313212111133131211331333133313331333133312111133133313331333133313311231223311   >>    C31321211113313121133133313331333133313331211113313331333133313331331123122331   <<    C313212111133131211331333133313331333133312111133133313331333133313311231223313   >>      C313212111133131211331333133313331333133312111133133313331333133313311231223312   >>