Break This Array

You are given an array $A$ of size $N$, and a string $S$ of length $K$ consisting of characters $\texttt{L}$ and $\texttt{R}$ only. You have to perform $K$ operations on the array. In the $i^{th}$ operation: - If the array is of size $1$, you do not need to perform the operation. - Else, choose an integer $X$ $(1\le X \lt |A|)$ randomly and equi-probably and break the array $A$ into subarrays $A[