Construct payoff and profit diagrams for the purchase of a 1050-strike S&R call and sale of a

Question:

Construct payoff and profit diagrams for the purchase of a 1050-strike S&R call and sale of a 950-strike S&R call. Verify that you obtain exactly the same profit diagram for the purchase of a 1050-strike S&R put and sale of a 950-strike S&R put. What is the difference in the initial cost of these positions? Discuss.