import java.util.*;
public class Main {
     public static void main(String [] args){
      Scanner input = new Scanner(System.in);
       
      int a = input.nextInt();
      int b = input.nextInt();
      int c = input.nextInt();
    
      int arr[] = {5, 7, 5};
      
      if(arr[0]==a && arr[1]==b && arr[2]==c)
          System.out.println("YES");
      else if(arr[0]==a && arr[1]==c && arr[2]==b)
          System.out.println("YES");
      else if(arr[0]==b && arr[1]==a && arr[2]==c)
          System.out.println("YES");
      else
          System.out.println("NO");
     
     }
}

/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