题解 | #记负均正#

n = int(input())
num_list = list(map(int,input().split()))
a = []
b = []

# 遍历整个列表
for i in num_list:
    if i > 0:
        a.append(i)
    elif i < 0:
        b.append(i)
if len(a) != 0:
    print(len(b),round(sum(a) / len(a),1))
else:
    print(len(b),0.0)