while True:
try:
n=int(input())
s=list(map(int,input().split()))
a,b=[],[]
c=0
for i in s[:n]:
if i>0:
c+=1
a.append(i)
elif i<0:
b.append(i)
if c==0:
print('%d %.1f' % (len(b),0))
else:
print(len(b),round(sum(a)/len(a),1))
except:
break