import java.util.*;

public class Main {
	public static void main(String[] args) {
   		Scanner sc = new Scanner(System.in);
    	int a = sc.nextInt();
      	int b = sc.nextInt();
    	int c = sc.nextInt();
    	int total = a + b + c;
    	if(total == 17){
      		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