import java.util.*;

class Main{
	public static void main(String args[]){
    Scanner sc = new Scanner(System.in);
    int five=0,seven=0;
    for(int i=0;i<3;i++){
    int n = Integer.parseInt(sc.next());
    if(n==5)five++;
    else if(n==7)seven++;
  }
  if(five==2 && seven==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