### A good answer might be:

103.

Instead of a 90 second exposure, the patient got a `3*103 + '<'*102 + 9*101 + 0*100` second exposure.

# End of the Chapter

You have reached the end of this chapter. Click on a blue subject to go to where it was discussed. To get back here, click on the "back arrow" button of your browser.

- syscall instruction
- Trap handler services
- print string
- Using the trap handler with SPIM
- read integer
- read string

You have reached the end of the chapter.