Leg Destructor

For time:

100' Walking Lunges
21 Pullups
21 Situps
100' Walking Lunges
18 Pullups
18 Situps
100' Walking Lunges
15 Pullups
15 Situps
100' Walking Lunges
12 Pullups
12 Situps
100' Walking Lunges
9 Pullups
9 Situps
100' Walking Lunges
6 Pullups
6 Situps