import java.io. *;
import java.util. *;
 
public class Main  {
	
	
	
    void solve(Scanner in, PrintWriter out) {
        out.println(25);
        
    }
    void run() {
        Locale.setDefault(Locale.US);
        try (
                Scanner in = new Scanner(System.in);
                PrintWriter out = new PrintWriter(System.out);
        )
        {
            solve(in, out);
        }
         
    }
     
    public static void main(String args[]) {
     
        new Main().run();
    }
}