p = []
n = []
while True:
    try:
        num = int(input())
        if num < 0:
            n.append(num)
        else:
            p.append(num)
    except:
        print(len(n))
        if len(p) == 0:
            print(0.0)
        else:
            print('%.1f'%(sum(p)/len(p)))
        break