import java.util.*;

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 argInt[] ={a,b,c};
     
      int fiveCount = 0;
      int sevenCount = 0;
       
      for(int arg: argInt){
      	if(arg == 5){
          fiveCount++;
        }
        if( arg == 7){
          sevenCount++;
        }
      }
      
      if(fiveCount == 2 || sevenCount == 1){
        System.out.print("YES");
      }else{
        System.out.print("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