What is the count for the instruction CountMe as a function of n for the fragment below?

Question

Line 1: j = 1
Line 2: while (j<= n/2) {
Line 3: i = 1
Line 4: while (i<=j) {
Line 5: CountMe
Line 6: i++
Line 7: }
Line 8: j++
Line 9: }