n = int(input()) a = [int(input()) for i in range(n)] for i in range(n): v = [] for j in range(n): v.append(a[(i + j) % n]) cnt = 0 for i in range(0, n): for j in range(0, n-1): if v[j] > v[j+1]: v[j], v[j+1] = v[j+1], v[j] cnt += 1 print(cnt)