- 1,2,4,3 order
- test code signal problems
- 10-15 minutes on this level while writing 15-20 lines of code.
- 20-30 minutes on this level, and write 30-45 lines of code
- 30-60 minutes on this level, and write 90-130 lines of code
- 30-60 minutes on this level, and write 110-160 lines of code