C111123313121111121111331333133313331333132232233131211113323132233132313233311   >>    C11112331312111112111133133313331333133313223223313121111332313223313231323331   <<    C111123313121111121111331333133313331333132232233131211113323132233132313233313   >>      C111123313121111121111331333133313331333132232233131211113323132233132313233312   >>