Below, you can find another hint for the Challenge.
You should only get here after reading, digesting, and applying the .
How about getting that quote in the output?
Here is a way to do it:
Note that the use of QU is forbidden in the solution, but it might be useful to get some ideas.
The program now outputs ():
So, that program gets the beginning right, up to and including the first single quote.
A slight variation is ():
This road can lead somewhere, but let's do it without QU ():
After the single quote, in the program above, appear the characters write(. Hence, these must be output next. This leads to the following program:
This produces as output ():
Can you see how to get more output right, say the first two lines?
Try your program in the machine, and see if you can extend it to a complete solution.
It is your turn ...
If you tried this and got stuck again, then you are ready for the .