import java.util.*;
public class Main {
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int c5 = 0;
    int c7 = 0;
    String ans = "NO";
    for(int i = 0;i < 3;i++){
      int que = sc.nextInt();
      if(que == 5)c5++;
      if(que == 7)c7++;
    }
    if(c5 == 2&&c7 == 1)ans = "YES";
  System.out.println(ans);
  }
}
/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