Row operations as matrix multiplication

Now the task is more difficult. If the initial matrix is multiplied by the first row operator, and then by the second one, then we will get a composition of these operations. Since a row operator is such a matrix that can define any change of matrix rows, that means that these two modifications can be described with just a single row operator. You're given the initial matrix $\begin{pmatrix} 1 & 2 & 3\\ 4 & 5 & 6\\ 7 & 8 & 9 \end{pmatrix}$ and two row operators: $\begin{pmatrix} 3 & 0 & 0\\ 0 & 0 & 1\\ 0 & 1 & 0 \end{pmatrix}$ and $\begin{pmatrix} 0 & 1 & 0\\ 1 & 0 & 0\\ 0 & 0 & 4 \end{pmatrix}$. Find the row operator that does the same job as those two operators together. Do remember that the operators must be applied to the matrix exactly in the order they are written: start with the first operator, and then apply the second one.

Write the matrix to the answer field. For example, your output may look like this:

1 2 3
4 5 6
7 8 9