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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_sorted_counter(counter, tab=1):
 """print all elements of a counter in descending order"""

    for key, count in sorted(counter.items(), key=itemgetter(1), reverse=True):
        print "{0}{1} - {2}".format('\t'*tab, key, count)