Farmers Sheep

I began by adding 3 sheep's on each corners. Then I separated each sheep and added it to each square. I had to rearrange all the sheep's formation so that the farmer would be able to see all 25 sheep from each window of his house.

Problem:
A farmer can see nine sheep if he looks out of any of his four windows. His wife buys him a new sheep. Which paddock would the new sheep can be put in so he can see nine sheep from each of his window.