import java.util.*;
class Main{
    public static void main(String[] args){
Scanner in = new Scanner(System.in);
       int a = in.nextInt();
       int b = in.nextInt();
       int c = in.nextInt();
       
       if (a == 5 || a==7 || b == 5 || b == 7 || c == 5 || c == 7)
           if (a + b + c == 17)
                System.out.printf("YES");
            else
                System.out.printf("NO");
       else
            System.out.printf("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