''' Q8: Given a list x as input, replace the first element of x with the original list x, and return the resulting list.
>>> f([1,2,3,4]) 
[[1,2,3,4],2,3,4]
>>> f(['a','b','c'])
[['a','b','c'],'b','c']
>>>f([1])
[[1]]
'''
def f(x):
    # Your Code Here!
    pass

if __name__ == '__main__':
    import doctest
    doctest.testmod()