import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		// 整数の入力
        int a = 0;
        int count = 0;
      
        for(int i = 0;i < 3;i++){
          a = sc.nextInt();
       	    if(a == 7){
              count += 1;
        	}else if(a == 5){
              count += 10;
            }
        }
        if(count == 21){
        	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