import java.util.Scanner;

public class Main {

	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
      	String[] values = sc.nextLine().split(" ");
      	int countFor7 = 0;
      	int countFor5 = 0;
      	
      	for(String value: values) {
      		if ("7".equals(value)) {
				countFor7++;
			}else if("5".equals(value)) {
				countFor5++;
			}
      	}
      	
      	System.out.println((countFor5 == 2 && countFor7 == 1)? "YES": "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