import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		int seven = 0;
		int five = 0;
		int[] num = new int[3];
		Scanner scanner = new Scanner(System.in);
		for (int i = 0; i < num.length; i++) {

			num[i] = scanner.nextInt();
		}
		for (int i = 0; i < 3; i++) {
			if (num[i] == 5) {
				five=five+1;
			}
			if (num[i] == 7) {
				seven=seven+1;
			}

		}

		if (five == 2 && seven == 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