def main():
    n = int(input())
    mas = list(map(float, input().split()))
    for i in range(n - 1):
        mas2 = list(map(float, input().split()))
        for i in range(len(mas)):
            mas[i] += mas2[i]
    n2 = 8
    template = '{:.' + str(n2) + 'f}'
    print(template.format(mas[0] / n), template.format(mas[1] / n), template.format(mas[2] / n))
main()