Problem:
Score : 100 points

Problem Statement

Shichi-Go-San (literally "Seven-Five-Three") is a traditional event in a certain country to celebrate the growth of seven-, five- and three-year-old children.

Takahashi is now X years old. Will his growth be celebrated in Shichi-Go-San this time?

Constraints

1 ≤ X ≤ 9

X is an integer.

Input

Input is given from Standard Input in the following format:

X

Output

If Takahashi's growth will be celebrated, print YES; if it will not, print NO.

Sample Input 1

5

Sample Output 1

YES

The growth of a five-year-old child will be celebrated.

Sample Input 2

6

Sample Output 2

NO

See you next year.

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

n = gets.to_i
ary = []
ns = ['7','5','3']
(3..9).each do |i|
  nums = ns.repeated_permutation(i).select{ |set| (ns - set).empty? }.map(&:join)
  ary += nums
end
 
 
cnt = ary.select{|num| num.to_i <= n}
puts cnt.length