import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		int a = scan.nextInt();
		int b = scan.nextInt();
		int c = scan.nextInt();
		int count_5 = 0;
		int count_7 = 0;
		if(a == 5) {
			count_5++;
		} else if(a == 7) {
			count_7++;
		}
		if(b == 5) {
			count_5++;
		} else if(b == 7) {
			count_7++;
		}
		if(c == 5) {
			count_5++;
		} else if(c == 7) {
			count_7++;
		}
		if(count_5 == 2 && count_7 == 1) {
			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