C313212111133131211331333133313331333133313231333133313331333121111331322121211   >>    C31321211113313121133133313331333133313331323133313331333133312111133132212121   <<    C313212111133131211331333133313331333133313231333133313331333121111331322121213   >>      C313212111133131211331333133313331333133313231333133313331333121111331322121212   >>