source_code: import java.io.BufferedReader;
  import java.io.FileReader;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.InputStreamReader;
  import java.io.PrintWriter;
  import java.util.StringTokenizer;
  
  public class A {
  
  	
  	public static void main(String[] args) {
  		System.out.println(25);
  	}
  }
  