Python-Min/max of seq WITHOUT min() and max()

Given a sequence such as x = [5, 9, 0, -14], I need to find the min and max without sorting the sequence or by using min() and max().  I've been instructed to use loop constructs, but I can't figure out how to do so.  Help is greatly appreciated.

>>6
WTF I SKIPPED THAT PART AND ONLY READ THE LAST PART

OH AND LISTEN TO >>7 HE IS RIGHT, I AM RIGHT, YOU ARE WRRRRRRRRONG~~~~~

Here's another solution, then:
minmax :: [a] -> (a, a)
minmax x = (min x, max x)