I understand the concept of using the elementary operations. However, I just can not understand how to apply these :

Step 1 Set S= a , K= 0 and t= a

Step 2 While K < n

a.) t = t + d

b.) S= S + t

c.) K = K + 1

end while

Step 3 Print S.

I'm needing to find out how many elementary operation I will use.

I hope I done this right: