def func1(): pass
def func2(): pass
def func3(): pass
def func4(): pass
def func5(): pass
def func6(): pass
def func7(): pass
def func8(): pass
def func9(): pass
def func10(): pass
def func11(): pass
def func12(): pass
def func13(): pass
def func14(): pass
def func15(): pass
def func16(): pass
def func17(): pass
def func18(): pass