source_code: import java.io.BufferedReader;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.InputStreamReader;
  import java.io.OutputStream;
  import java.io.PrintWriter;
  import java.util.StringTokenizer;
  
  public class Main {
  	public static void main(String args[]) {
  		InputStream intputStream = System.in;
  		OutputStream outputStream = System.out;
  		InputReader in = new InputReader(intputStream);
  		PrintWriter out = new PrintWriter(outputStream);
  		TaskA solver = new TaskA();
  		solver.solve(in, out);
  		out.close();
  	}
  
  	static class TaskA {
  		public void solve(InputReader in, PrintWriter out) {
  			out.println(25);
  		}
  	}
  
  	static class InputReader {
  		public BufferedReader reader;
  		public StringTokenizer tokenizer;
  
  		public InputReader(InputStream stream) {
  			reader = new BufferedReader(new InputStreamReader(stream), 32768);
  			tokenizer = null;
  		}
  
  		public String next() {
  			while (tokenizer == null || !tokenizer.hasMoreTokens()) {
  				try {
  					tokenizer = new StringTokenizer(reader.readLine());
  				} catch (IOException e) {
  					throw new RuntimeException(e);
  				}
  			}
  			return tokenizer.nextToken();
  		}
  
  		public int nextInt() {
  			return Integer.parseInt(next());
  		}
  		
  		public double nextDouble() {
  			return Double.parseDouble(next());
  		}
  		
  		public long nextLong() {
  			return Long.parseLong(next());
  		}
  		
  		public String nextLine() {
  			try {
  				return reader.readLine();
  			} catch (IOException e) {
  				return null;
  			}
  		}
  	}
  }