while True: try: n,l1 = int(input),map(int,input().split()) a,b,s = 0,0,0 for i in l1: if i < 0: a += 1 elif i > 0: b += 1 s += i print(a,round(s / b,1)) except: break
while True: try: n,l1 = int(input),map(int,input().split()) a,b,s = 0,0,0 for i in l1: if i < 0: a += 1 elif i > 0: b += 1 s += i print(a,round(s / b,1)) except: break