import java.util.Scanner;

public class Main{
	
	public static void main(String args[]){
		Scanner sc = new Scanner(System.in);
      	int i = 0, input, total = 0;
      	while(i < 3){
          input = Integer.parseInt(sc.next());
          total += input;
          i++;
        }
      
      	if(total % 10 == 7){
        	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