C# code pls

12. Write code (on the back of this sheet) to draw 10 concentric blue circles. The outer most circles should have a radius of 400 . The inner most circle a radius of 220 . To draw a circle, use the Drawellipse command which accepts a brush and the coordinates of the rectangle surrounding the circle and height and width of the enclosing rectangle. The middle coordinates of the inner most circle should be 600,400. 13. Use Checkboard code below to answer the following 2 questions: a. What impact on the output would changing for (inti=1;i