题解 | #记负均正II#

# 20241008
ls = []
while True:
    try:
        ls.append(int(input()))
    except:
        break
ls1 = []
ls2 = []
for i in ls:
    if i >= 0:
        ls1.append(i)
    elif i < 0:
        ls2.append(i)
if len(ls1) == 0:
    print(len(ls2))
    print(0.0)
else:
    avg = sum(ls1)/len(ls1)
    print(len(ls2))
    print(round(avg,1))