//
// Average.java: read, format, compute average for a list of scores
//

import edu.colorado.io.*;

class Average
{
   public static final int MAXSCORES   = 50;
   public static final int FIELD_WIDTH = 15;

   public static final EasyReader stdin = new EasyReader(System.in);

   public static void main(String[] args)
   {
      double[] scores = new double[MAXSCORES];
      String[] names  = new String[MAXSCORES];

      int num_scores = readScores(scores, names);
      printScores(scores, names, num_scores);
      double ave;
      if ( num_scores > 0 )
         ave = aveScore(scores, num_scores);
      else
         ave = 0.0;
      System.out.println();
      printAverage(ave);
      // note names[0] == "Sam" gives the wrong results!
      if ( names[0].equals("Sam") && scores[0] < 60 )
         System.out.println("Sam failed!");
   }

   public static int readScores(double[] scores, String[] names)
   {
      int current = 0;
      
      names[current] = stdin.stringInput();
      while ( ! stdin.isEOF() )
      {
         scores[current] = stdin.doubleInput();
         current++;
         names[current] = stdin.stringInput();
      }
      return current;
   }

   public static void printScores(double[] scores, String[] names,
                                  int num_scores)
   {
      FormatWriter.printRight("Name", FIELD_WIDTH);
      FormatWriter.printRight("Score", FIELD_WIDTH);
      System.out.println();
      FormatWriter.printRight("----", FIELD_WIDTH);
      FormatWriter.printRight("-----", FIELD_WIDTH);
      System.out.println();
      for(int i = 0; i < num_scores; i++)
      {
         FormatWriter.printRight(names[i], FIELD_WIDTH);
         FormatWriter.printNumber(scores[i], FIELD_WIDTH, 1);
         System.out.println();
      }
   }

   public static double aveScore(double[] scores, int num_scores)
   // precondition: num_scores > 0
   {
      if ( num_scores <= 0 )
         throw new IllegalArgumentException("Number of scores must "
                                            + "be positive.");
      double sum = 0.0;
      for(int i = 0; i < num_scores; i++)
         sum += scores[i];
      return sum / (double)num_scores;
   }

   public static void printAverage(double ave)
   {
      System.out.print("Average score: ");
      FormatWriter.printNumber(ave, 0, 2);
      System.out.println();
   }
}