import java.util.Scanner;

class Main {

	public static void main(String args[]){

		Scanner scan = new Scanner(System.in);
		int a, b, c;
		a = scan.nextInt();
		b = scan.nextInt();
		c = scan.nextInt();

		if(a == 5){
			if(b == 5){
				if(c == 7)System.out.print("YES");
				else System.out.print("NO");
			}
			else if(b == 7){
				if(c == 5)System.out.print("YES");
				else System.out.print("NO");
			}
		}
		else if(a == 7){
			if(b == 5){
				if(c == 5)System.out.print("YES");
				else System.out.print("NO");
			}
			else System.out.print("NO");
		}
		else System.out.print("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