Diagonalization & Matrix Powers · Easy problem

A matrix is built as $A = PDP^{-1}$ with $P = \begin{pmatrix}1 & 1\\0 & 1\end{pmatrix}$ and $D = \begin{pmatrix}2 & 0\\0 & 3\end{pmatrix}$. Find the entry in row 1, column 2 of $A$.