while True:

try:
    n = int(input())
    num_list = list(map(int, input().split()))
    a, b = [], []
    for i in num_list:
        if i > 0:
            a.append(i)
        elif i < 0:
            b.append(i)
    print(len(b), round(sum(a) / len(a), 1))
except:
    break