Add etl warmup
Merge branch 'master' of https://github.com/JumpstartLab/warmup-exercises
Difference of squares for today
Merge branch 'master' of github.com:JumpstartLab/warmup-exercises
Merge branch 'master' of https://github.com/JumpstartLab/warmup-exercises
3 months in and doing Project Euler Problem 6? Sigh.