import java.util.Scanner;
public class Main{
	public static void main(String[]args) {
		Scanner sc = new Scanner(System.in);

		int count1 = 0;
		int count2 = 0;
		int a = sc.nextInt();
		if(a == 5) {
			count1 += 1;
		}
		if(a == 7) {
			count2 += 1;
		}
		int b = sc.nextInt();
		if(b == 5) {
			count1 += 1;
		}
		if(b == 7) {
			count2 += 1;
		}
		int c = sc.nextInt();
		if(c == 5) {
			count1 += 1;
		}
		if(c == 7) {
			count2 += 1;
		}
		if(count1 == 2 && count2 == 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