import java.io.*;

public class Eingabe
{
   public static int lese()
   {
      try {
         BufferedReader in = new BufferedReader(new
            InputStreamReader(System.in));
         String x = in.readLine();
         int i = Integer.parseInt(x);
         return i;
      } catch (Exception e)
      {
         System.err.println("Eingabe-Fehler "+e);
         return -1;
      }
   }
   
   public static int zufall()
   {
      return ((int)(Math.random()*100));
   }
}