import java.util.*;
public class Main {
	public static void main(String[] args){
    	Scanner scanner = new Scanner(System.in);
      
      	int five = 0;
      	int seven = 0;
      
      	for(int i = 0; i < 3; i++) {
        	int number = scanner.nextInt();
          
          	if(number == 5) {
            	five = five + 1;
            } else if(number == 7) {
            	seven = seven + 1;
            }
        }
         
      	if(five == 2 && seven == 1) {
        	System.out.println("YES");
          	return;
        }
          
       	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