Information theory

Let $A_{\varepsilon}^{(n)}$ be the set of $n$ -sequences such that $2^{-n(H(X) + \varepsilon)} \leq p(x_1, \dots, x_n) \leq 2^{-n(H(X) - \varepsilon)}$ . Then:

$Pr\{A_{\varepsilon}^{(n)}\} > z_1$
$|A_{\varepsilon}^{(n)}| \leq z_2$
$|A_{\varepsilon}^{(n)}| \geq z_3$

Who are $z_1, z_2, z_3$ ?