Python Programming Question, Triangle of stars using definition of functions

Write functions triangleNW(n), triangleNE(n), triangleSW(n), and triangleSE(n) that print nn triangles of asterisks (the "star" character *) with a right angle at the named corner. For example, triangleNW(4) would print

**** *** ** * 

while triangleNE(5) would print

***** **** *** ** * 

Use these functions to write a program that has the user ask for a value of n, then prints the following figure composed of nn triangles (the sample is for n=4):

**** *** ** * * ** *** **** **** *** ** * * ** *** **** 

(Hints: you can print a row of asterisks by using string multiplication "*" * n, for example. Your triangle functions will then consist of for loops that print one row of asterisks at a time. For the NE and SE triangles, remember that you can print multiple spaces using the same technique: " " * n