import java.util.*;
import java.io.*;

public class Main
{
	public static void main(String [] args) throws IOException
    {
    	BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
 		String [] anArray = reader.readLine().split(" ");
      
      	int counterFor7 = 0;
        int counterFor5 = 0;
      
      	for(int i = 0; i < anArray.length; i++)
        {
        	if(Integer.parseInt(anArray[i]) == 7)
            {
            	counterFor7++;
            }
            else if(Integer.parseInt(anArray[i]) == 5)
            {
            	counterFor5++;
            }
        }
      
      	if(counterFor7 == 1 && counterFor5 == 2)
        {
        	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