import java.util.*;


class Main{
  
     
  
  
	public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
      
      int cnt5 = 0;
      int cnt7 = 0;
      for(int i=0;i<3;i++){
      	int n = sc.nextInt();
        if(n==5){
        	cnt5++;
        } else if(n==7){
        	cnt7++;
        }
      }
      
      if(cnt5==2 && cnt7==1){
      	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