Write a C program which will calculate sum of two $33$ matrix. Sum of two matrix

can be obtained by simply adding corresponding elements from each matrix.

For example:

Given matrix $A=\left[\begin{array}{ccc}1& 2& 3\\ 4& 5& 6\\ 7& 8& 9\end{array}\right]$ matrix $B=\left[\begin{array}{ccc}1& 0& 0\\ 2& 1& 1\\ 0& 3& 1\end{array}\right],A+B=\left[\begin{array}{ccc}2& 2& 3\\ 6& 6& 7\\ 7& 11& 10\end{array}\right]$