Let the parameters be the following: the gross premium rate c = 50 per time unit, intensity a = 20 claims per time unit, the mean of exponential claim sizes = 2. For initial capitals U= u = 0, 10, 20, 50, 100, 200, 500, 10,..., 104, sketch the ruin probabilities with initial capital as argument, calculate the ruin probability (u) (use the exact formula for exponential claims). For the exponential claims, what is the constant C in the Cramer-Lundberg ruin bound, limu eu(u) = C? Calculate C.