import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
  		Scanner scan = new Scanner(System.in);
  		int cnt1 = 0;
  		int cnt2 = 0;
  		for(int i = 0; i < 3; i++){
    		int num = scan.nextInt();
    		if(num == 5){
      			cnt1++;
    		}
    		else if(num == 7){
      			cnt2++;
    		}
  		}
  
  		if(cnt1 == 2 && cnt2 == 1){
    		System.out.println("YES");
  		}
  		else{
    		System.out.println("NO");
  		}
  		scan.close();
	}
}

/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