/* package whatever; // don't place package name! */

import java.util.*;
;

/* Name of the class has to be "Main" only if the class is public. */
public class Main
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
		Scanner s = new Scanner(System.in);
		long n = s.nextLong();
		System.out.println(25);
	}
}