ls = []
while True:
    try:
        ls.append(int(input()))
    except:
        break
ls1 = []
ls2 = []
for i in ls:
    if i >= 0:
        ls1.append(i)
    else:
        ls2.append(i)

print(len(ls2))
if len(ls1) != 0:
    print(round(sum((ls1))/len(ls1),1))
else:
    print(0.0)