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

public class Main{
  public static void main(String[] args) throws IOException{
    Scanner sc =new Scanner(System.in);
    
    int read;
    int five=0,seven=0;
    for(int i=0;i<3;i++){
            read = sc.nextInt();
      if(read==5){
        five++;
      }
      else if(read==7){
        seven++;
      }
    }
    String ans ="NO";
    if(five==2||seven==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