Answer:
120 rows of 50 stars will work. (It might be stretching things a bit to call this a Virtual Reality program.)

Virtual Reality

You have reached the end of the chapter. A star student will review the following.

• program, adding evens and odds Adding up even and odd integers.
• if, nested A nested if statement.
• factorial, definition Definition of N factorial.
• factorial, flowchart Flowchart for computing N!
• program, factorial Factorial program.
• overflow Overflow.
• brick, free fall The problem of the falling brick.
• program, falling brick Falling Brick program.
• program, row of starts Rows of Stars program.
• divide and conquer Divide and Conquer

The next chapter discusses more about loops.