import java.util.*;
public class Main{
   public static void main(String[] args){
     Scanner sc = new Scanner(System.in);
     int a = sc.nextInt();
     int b = sc.nextInt();
     int c = sc.nextInt();
     String ans = "NO";
     if(a*b*c==5*7*5)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