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();
		int cnt5 = 0;
		int cnt7 = 0;
		if(a==5){
			cnt5 += 1;
		}else if(a==7){
			cnt7 += 1;
		}
		if(b==5){
			cnt5 += 1;
		}else if(b==7){
			cnt7 += 1;
		}
		if(c==5){
			cnt5 += 1;
		}else if(c==7){
			cnt7 += 1;
		}

		sc.close();
		System.out.println((cnt5==2&&cnt7==1) ? "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