C111123313121111121111331333133313331333132232233131211111331123231323231   >>    C11112331312111112111133133313331333133313223223313121111133112323132323   <<    C111123313121111121111331333133313331333132232233131211111331123231323233   >>      C111123313121111121111331333133313331333132232233131211111331123231323232   >>