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Language/Type: Python 2D lists

Write a function named matrix_add that accepts a pair of two-dimensional lists of integers as parameters, treats the lists as 2D matrices and adds them, returning the result. The sum of two matrices A and B is a matrix C where for every row i and column j, Cij = Aij + Bij. You may assume that the lists passed as parameters have the same dimensions.

Function: Write a Python function as described, not a complete program.

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