Reshape the Matrix

Given an m x n matrix, reshape it to r x c. If not possible, return the original matrix.

Output each row on a line, space-separated.

Input:

1,2
3,4
1 4

Output:

1 2 3 4

Reasoning:

The input matrix is $1 \times 2$ , with values 1,2 and 3,4, but the actual matrix is defined by the first line as a $1 \times 2$ matrix with values 1 and 2, and the second line as a $1 \times 2$ matrix with values 3 and 4.
The target reshape dimensions are given as 1 4, meaning $1$ row and $4$ columns, but since the total number of elements in the original matrix is $4$ ( $2$ elements per row $\times$ $2$ rows), we can reshape it to $1 \times 4$ .
We then flatten the original matrix into a single array: [1, 2, 3, 4].
The final output is this flattened array reshaped into $1 \times 4$ dimensions: 1 2 3 4