Consider the following schedule $S1$.
$S_{1}: R_{1}(C) R_{2}(C) W_{1}(A) W_{2}(A) W_{1}(C) R_{1}(B) R_{2}(B) W_{1}(B) W_{1}(D) W_{2}(B) W_{2}(D) R_{1}(F) W_{3}(E) R_{3}(F)$
Let $'X'$ be the number of 'blind-write' operations in the given schedule and $'z'$ be the number of conflict equivalent serial schedules to $S_{1}$. The value of $X*Z$ is_________.