PROGRAMMING:Assign the square of X to y

Assuming that the value of $$x $$is 3, calculate the square of $$x $$and assign it to $$y $$to output the values of $$x $$and $$y $$in the form of "$$y $= $$x $$* $$$x $$* $$x $$= $$y $$".
###Input format:
There is no input for this question
###Output format:
Output the result substituting 'x' = 3 in the following format:
```
y = x * x
x * x = y
```






answer：If there is no answer, please comment