题解 | #记负均正#

n = int(input())

li = list(map(int, input().split()))

counter = 0
sum = 0
counter2 = 0

for i in li:
    if i < 0:
        counter += 1
    elif i > 0:
        sum += i
        counter2 +=1
if counter2 != 0:    # 0不能做分母
    res = sum / counter2
else:
    res = 0


print(counter,f'{res:.1f}')