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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def maskInMicrolensRegion(ch, col, row, padding=0):
 """Is a target in the K2C9 superstamp, including padding? This function is identical to pixelInMicrolensRegion, except it takes the extra `padding` argument. The coordinate must be within the K2C9 superstamp by at least `padding` number of pixels on either side of the coordinate. (Note that this function does not check whether something is close to the CCD boundaries, it only checks whether something is close to the edge of stamp.) """

    if padding == 0:
        return pixelInMicrolensRegion(ch, col, row)

    combinations = [[col - padding, row],
                    [col + padding, row],
                    [col, row - padding],
                    [col, row + padding]]
    for col, row in combinations:
        # Science pixels occupy columns 12 - 1111, rows 20 - 1043
        if col < 12:
            col = 12
        if col > 1111:
            col = 1111
        if row < 20:
            row = 20
        if row > 1043:
            row = 1043
        if not pixelInMicrolensRegion(ch, col, row):
            return False
    return True