Numerical Analysis — solving for missing values of a cubic

Given that $f(x)$ is a polynomial of third degree with the values $f(-2)=-33$, $f(-1)=m_1$, $f(0)=5$, $f(1)=9$, $f(2)=m_2$ and $f(3)=47$. What are the values of $m_1$ and $m_2$ respectively?