class color2 {

  public static void main(String args[]) {
    for(int i=0; i<MAX; i++)
      color2.printColor(i);
  }

  public static void printColor(int color) {
    switch (color) {
    case RED: System.out.println("red"); break;
    case GREEN: System.out.println("green"); break;
    case BLUE: System.out.println("blue"); break;
    }
  }

  public static final int RED=0;
  public static final int GREEN=1;
  public static final int BLUE=2;
  public static final int MAX=3;

  public int color;
}