import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		try {
			int fiveCount = 0;
			int sevenCount = 0;

			int inputCount = 0;
			while (inputCount < 3) {
				int abc = sc.nextInt();

				if (abc == 5) {
					fiveCount++;
				} else if (abc == 7) {
					sevenCount++;
				}
				inputCount++;
			}

			if (fiveCount == 2 && sevenCount == 1) {
				System.out.println("YES");
			} else {
				System.out.println("NO");
			}

		} finally {
			sc.close();
		}
	}
}
/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