import java.util.Scanner;

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();
		boolean ans = false;

		switch (a) {
		case 5:
			if(b ==7) {
				if(c == 5) {
					ans = true;
				}
			}else if(c == 7) {
				if(b == 5) {
					ans = true;
				}
			}
			break;
		case 7:
			if(b == 5 && c == 5) {
				ans = true;
			}
		}
		System.out.println(ans ? "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