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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 shared_prefix(args):
 """ Find the shared prefix between the strings. For instance: sharedPrefix(['blahblah', 'blahwhat']) returns 'blah'. """

    i = 0
    while i < min(map(len, args)):
        if len(set(map(operator.itemgetter(i), args))) != 1:
            break
        i += 1
    return args[0][:i]