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 Java7 (OpenJDK 1.7.0) (judge verdict: Accepted)

import java.util.*;

public class Main {

  public static void main(String[] args) {
    Main m = new Main();
    m.exec();
  }

  private void exec() {
    Scanner scan = new Scanner(System.in);
	int count5 = 0;
    int count7 = 0;
    for (int i = 0; i < 3; i++) {
      switch (scan.nextInt()) {
        case 5:
          count5++;
          break;
        case 7:
          count7++;
          break;
        default:
      }
    }
    if (count5 == 2 && count7 == 1) {
      System.out.println("YES");
    } else {
      System.out.println("NO");
    }

    scan.close();
  }
}