A vertical spring-mass oscillator with a block of mass \(m\) on an ideal spring of spring constant \(k\) and a simple pendulum with a bob of mass \(m\) on a string of length \(L\) both execute small-amplitude oscillations inside an elevator cab at rest on Earth. The elevator then begins accelerating upward with a constant acceleration of magnitude \(a\). How do the period of the spring-mass oscillator and the period of the simple pendulum in the accelerating elevator compare to their initial periods when the elevator was at rest?