3 sets of 12 upright row immediately follow by 12 reverse flys immediately followed by 12 lateral raises. These 3 movements back to back are 1 set, repeat 2 more times to make it 3 sets.
Note: Rest 90 seconds between sets, make the upright row heavier if possible, drop to a lighter weight for reverse flys and use a light weight on the lateral raises. A slight bent on the elbow on the lateral raises is ok.