Leg/Ab Workout (No gym required!!)

I found this crossfit workout on runnersworld.com - I did it today and it was killer!  No gym or equipment required.  

35 Squats

35 Situps

35 Squats

35 Situps

35 Squats

35 Lunges (35 with each leg)

35 Squats

This is one round.  The complete workout is 2 rounds.  If you are new to working out, try starting with 10 of each, instead of 35.  Work your way up over time!  Your legs will feel this the next day!