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();
		if(A==7 || B==7 || C==7){
			if(A==7){
				if(B==5 && C==5){
				System.out.println("YES");
				}else{
				System.out.println("NO");
				}
			}else if(B==7){
				if(C==5 && A==5){
				System.out.println("YES");
				}else{
				System.out.println("NO");
				}
			}else if(C==7){
			 if(A==5 && B==5){
			  System.out.println("YES");
			 }else{
			  System.out.println("NO");
			 }
            }else{
			}
		}else{
		System.out.println("NO");
		}
    	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