What is the output of the following code snippet?

public static int changeValue(int x) {
    int y;
    y = x + x;
    return y;
}

public static void main(String args[]) {
    int a = 5;
    changeValue(a);
    a = a + 2;
    System.out.print("a = " + a + ", result = " + changeValue(a));
}