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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 print_summary_stats(counter):
 """ Prints summary statistics about which writer strategies were used, and how much they were used. :param counter: A list of lists. The first entry on the inner list is a number count of how many times a WriterStrategy was used, and the second entry is a string label describing the WriterStrategy """

    sum = 0     # Sum of labeled WriterStrategy modifications
    u_sum = 0   # Sum of unlabeled WriterStrategy modifications
    for c in counter:
        if c[1] is not None and c[0] > 0:
            print("Total " + c[1] + " modified:\t" + str(c[0]))
            sum += c[0]
        else:
            u_sum += c[0]
    if u_sum > 0:
        print("Unlabeled modifications: \t" + str(u_sum))
    print("Total modifications: \t\t" + str(sum + u_sum))