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