In front of a clock set for 12 minutes:

1 minute of Double-unders
1 minute of 22.5kg (15kg) Dumbbell Snatches
2 minutes of Double-unders
2 minutes of 22.5kg (15kg) Dumbbell Snatches
3 minutes of Double-unders
3 minutes of 22.5kg (15kg) Dumbbell Snatches