The input contains between 1 and 10 lines, *i*-th line contains an integer number *x*<sub class="lower-index">*i*</sub> (0 ≤ *x*<sub class="lower-index">*i*</sub> ≤ 9).
a = int(input())

b = 0

for i in range(a):
    b += int(input())
    print(round(b/a, 4))