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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 main():
 """Main method for running upsidedown.py from the command line."""

    import sys

    output = []
    line = sys.stdin.readline()

    while line:
        line = line.strip("\n")
        output.append(transform(line))

        line = sys.stdin.readline()
    output.reverse()
    print("\n".join(output))