Problem:
Score : 100 points

Problem Statement

It is September 9 in Japan now.

You are given a two-digit integer N. Answer the question: Is 9 contained in the decimal notation of N?

Constraints

10≤N≤99

Input

Input is given from Standard Input in the following format:

N

Output

If 9 is contained in the decimal notation of N, print Yes; if not, print No.

Sample Input 1

29

Sample Output 1

Yes

The one's digit of 29 is 9.

Sample Input 2

72

Sample Output 2

No

72 does not contain 9.

Sample Input 3

91

Sample Output 3

Yes

Solution in Ruby (2.3.3) (judge verdict: Wrong Answer)

class Abc073a
  def self.include9(num)
    num.split('').each do |i|
      if i == "9"
        return "Yes"
      end
    end
    return "No"
  end
end
p Abc073a.include9($stdin.gets.chomp)