Main Page $$ Exercises $CSBS5$ Pvthon $$ Solve $an$ Exercise

$($i$)$ You are working on problem set $CSBS5($O Pause$)$

reference$\_$mystery$1$

Language$/$Type:

Python parameters reference semantics

When the main function below is called, the following code produces $4$ lines of output. Write each line of output below as it would appear on the console.

def mystery $(a,x,y)$ :

If $x+=1a[x]=17a[y]=17(x,y,a)y=1x=3y,xx,y,ax=y-1y,xx,y,a$