Deadly Simple!

For time - 3 rounds of: 
21 DB snatch (70/50), 
15 Overhead lunge step, 
9 Box Jump overs (24"/20")
rest 2 minutes 
Then 3 rounds of 
15 DB snatch (70/50), 
12 Overhead lunge step, 
9 Box Jump overs  
Rest 2 minutes and finish with
3 rounds of
12 DB snatch (70/50), 
9 Overhead lunge step, 
9 Box Jump overs