import ch.aplu.turtle.*;
import java.awt.Color;
class serie63
{
  Turtle pierre = new Turtle();

serie63()
  {
    for (int i = 0; i < 50; i++)
    {
      double a = Math.random();
      if (a > 0.5)
{
        pierre.setPenColor(Color.red);
pierre.right(90);
      pierre.forward(20);
} 
     else
 {    

        pierre.setPenColor(Color.blue);
     pierre.left(90);
      pierre.forward(20);
}  
  }
  }

  public static void main(String[] args)
  {
    new serie63();
  }
}