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: Accepted)

ls = gets.split(" ").map(&:to_i)
#p ls
s_count = 0
f_count = 0

for i in 0..2 do
  if ls[i] == 5
    f_count += 1
  end
  if ls[i] == 7
    s_count += 1
  end
end

if f_count == 2 && s_count == 1
  print("YES\n")
else
  print("NO\n")
end