import chess.Chess;
import chess.Screen;
import chess.Turtle;

public class TurtleExcerciseFour {
         
    public static void main(String[] args) {
        /* here you go */
        Screen myScreen= Chess.newScreen();
        Turtle tim= myScreen.newTurtle();
        
        int sides= Chess.readInt("Enter the number of sides: ");
        
        double angle= 360./sides;
        
        for ( int i=0; i<sides; i++ ) {                
            tim.forward(50);
            tim.right(angle);            
        }
        
        /* two braces below */        
    }
    
}