source_code: import java.io.*;
  
  
  public class Main {
      private StreamTokenizer in;
      private PrintWriter out;
  
  
      public static void main(String[] args) throws IOException {
          //long time = System.currentTimeMillis();
  
          new Main().run();
          //time = System.currentTimeMillis() - time;
          //System.out.println(time + " ms");
  
      }
  
  
      private void run() throws IOException {
          //in = new StreamTokenizer(new BufferedReader(new InputStreamReader(new FileInputStream("input.txt"))));
          //BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream("input.txt")));
          //out = new PrintWriter(new File("output.txt"));
  
          in = new StreamTokenizer(new BufferedReader(new InputStreamReader(System.in)));
          //BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
          out = new PrintWriter(new OutputStreamWriter(System.out));
          out.print(25);
  
  
          out.flush();
  
      }
  
  
      int nextInt() throws IOException {
          in.nextToken();
          return (int) in.nval;
      }
  }