# Enter your code here. Read input from STDIN. Print output to STDOUT

N=float(raw_input())
A=str(raw_input()).split(" ")
aNeg=0
aPos=0
aZero=0
for a in A:
    if (float(a)>0):
        aPos+=1
    elif (float(a)<0):
        aNeg+=1
    elif (float(a)==0):
        aZero+=1

print round(float(aPos/N),6)
print round(float(aNeg/N),6)
print round(float(aZero/N),6)