Problem:
Score : 100 points

Problem Statement

Iroha loves Haiku. Haiku is a short form of Japanese poetry. A Haiku consists of three phrases with 5, 7 and 5 syllables, in this order.

To create a Haiku, Iroha has come up with three different phrases. These phrases have A, B and C syllables, respectively. Determine whether she can construct a Haiku by using each of the phrases once, in some order.

Constraints

1≦A,B,C≦10

Input

The input is given from Standard Input in the following format:

A B C

Output

If it is possible to construct a Haiku by using each of the phrases once, print YES (case-sensitive). Otherwise, print NO.

Sample Input 1

5 5 7

Sample Output 1

YES

Using three phrases of length 5, 5 and 7, it is possible to construct a Haiku.

Sample Input 2

7 7 5

Sample Output 2

NO

Solution in Ruby (2.3.3) (judge verdict: Runtime Error)

n, l = gets.split
ni = n.to_i
li = l.to_i
nums_array = []
ni.times {
  str = gets.chomp
  num_str = ""
  li.times {|i|
    num_str += str[i].ord.to_s(16)
  }
  nums_array.push(num_str.to_i(16))
}

res_str = ""
nums_array.sort!
nums_array.each {|val|
  num_str = val.to_s(16)
  0.step(num_str.length - 1, 2) {|i|
    p i
    res_str += num_str[i, 2].to_i(16).chr
  }
}
puts res_str