source_code: import java.io.BufferedReader;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.InputStreamReader;
  import java.util.LinkedList;
  import java.util.PriorityQueue;
  import java.util.Queue;
  import java.util.StringTokenizer;
  
  public class LuxuriousHouses {
  	
  	
  	public static void main(String[] args) throws IOException {
  		System.out.println(25);
  		
  
  		
  	}
  	
  	static class Scanner {
  		StringTokenizer st;
  		BufferedReader br;
  
  		public Scanner(InputStream s) {
  			br = new BufferedReader(new InputStreamReader(s));
  		}
  
  		public String next() throws IOException {
  			while (st == null || !st.hasMoreTokens())
  				st = new StringTokenizer(br.readLine());
  			return st.nextToken();
  		}
  
  		public int nextInt() throws IOException {
  			return Integer.parseInt(next());
  		}
  
  		public long nextLong() throws IOException {
  			return Long.parseLong(next());
  		}
  
  		public String nextLine() throws IOException {
  			return br.readLine();
  		}
  
  		public boolean ready() throws IOException {
  			return br.ready();
  		}
  
  	}
  }
  