import java.util.Scanner;

class Main {
  static int count5 = 0;
  static int count7 = 0;
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    func(sc.nextInt());
    func(sc.nextInt());
    func(sc.nextInt());
    if (count5 == 2 && count7 == 1) {
      System.out.println("YES");
    } else {
      System.out.println("NO");
    }
    sc.close();
  }
  static void func(int target){
    if (target == 5) {
      count5++;
    } else if (target == 7) {
      count7++;
    }
  }
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz