Translate plz

answer = 0
points = []
number = int(input())
for i in range(number):
  yes = int(input())
  if points == []:
    points.append(yes)
    answer += 1
  else:
    for h in range(len(points)):
      if yes >= points[h]:
        points.insert(h, yes)
        answer += h+1
        break
      elif h == len(points)-1:
        points.append(yes)
        answer += h+2
        break
final = answer/len(points)
print(format(final,'.2f'))