I have a matrix $A$:
$A=\begin{pmatrix} 1 &3 &1\\ 7 &5 &2\\ 4& 3& 7\\ 8& 2& 1\\ 3& 9& 6\\ 4 &5 &2 \end{pmatrix}$
and a matrix $B$:
$\begin{pmatrix} 2& 9& 1\\ 4& 3 &8\\ 9& 7& 3\\ 4& 4& 2\\ 6& 5& 7\\ 2 &9& 2 \end{pmatrix}$
I want to compute $C$:
$\begin{pmatrix} 1\cdot2+3\cdot9+1\cdot1\\ 7\cdot4+5\cdot3+2\cdot8\\ 4\cdot9+3\cdot7+7\cdot3\\ 8\cdot4+2\cdot4+1\cdot2\\ 3\cdot6+9\cdot5+6\cdot7\\ 4\cdot2+5\cdot9+2\cdot2 \end{pmatrix}$
How can I express this purely using matrix operations?