class CalculaMedia {
	
	public static void main(String[] args) {

	double[] calculaMedia = new double[3];

	calculaMedia[0] = 7;
	calculaMedia[1] = 8;
	calculaMedia[2] = (calculaMedia[0] + caucuçaMedia[1] ) / 2;

	System.out.println(calculaMedia[2]);
	}
}