source_code: import java.io.PrintWriter;
  import java.util.Scanner;
    
  public class Main {
      Scanner in;
      PrintWriter out;
        
      void solve() {
      	out.print("25");
      }
  
        
      void run() {
  
              in = new Scanner(System.in);
              out = new PrintWriter(System.out);      
  
              solve();
  
              out.close();
      }
    
      public static void main(String[] args) {
          new Main().run();
            
      }
  }