Question: You will be given a 2-D list called as matrix with n rows (r) and m columns(c). Find the sum of the matrix. Input Format

You will be given a 2-D list called as matrix with n rows (r) and m columns(c). Find the sum of the matrix. Input Format First line will have r and c denoting rows and columns of matrix Then r line follows c space seperated integers. Constraints 1
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