import java.util.*;

public class Main {
  public static void main(String[] args ) throws Exception {
    Scanner sc = new Scanner(System.in);
    int count1 = 0;
    int count2 = 0;
    
    for (int i = 0; i < 3; i++) {
      int token1 = sc.nextInt();
      
      if(token1 == 7 && count1 <= 1) {
          count1++;
      }else if(token1 == 5 && count1 <= 2) {
          count2++;
      }
    }
    
    if(count1 == 1 && count2 == 2) {
        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