import java.io.*; 
  
public class RedGreen 
{ 
  public static void main(String[] argv) throws Exception 
  { 
    BufferedReader cin; 
    cin = new BufferedReader(new InputStreamReader(System.in)); 
  
    String light; 
    System.out.print("What color is the light? [Red/Green]: "); 
    light = cin.readLine(); 
  
    if (light.equals("Red")) 
      System.out.println("Stop and wait"); 
  } 
}