R1.14.

public class Test2 {
	public static void main(String[] args)
	 {
		int wallDimensions = X * X * 4;
		int numberOfDoors = X;
		int numberOfWindows = X;
		int sizeOfDoor = X * X * numberOfDoors;
		int sizeOfWindows = X * X * numberOfWindows;
		System.out.println(wallDimensions - sizeOfDoor - sizeOfWindows);


	 }
}