Markov Chains & Long-Run Behavior · Medium problem

A chain on states 1, 2, 3 has transition matrix $M = \begin{pmatrix} 1/2 & 1/4 & 0 \\ 1/2 & 1/2 & 1/2 \\ 0 & 1/4 & 1/2 \end{pmatrix}$, where $M_{ij}$ is the probability of moving to state $i$ from state $j$. Starting in state 1, what is the expected number of steps until the chain first returns to state 1?