def pzn(num):
    if num>0:
        tmp=1
    elif num ==0:
        tmp = 0
    else:
        tmp=-1
    return tmp

while True:
    n= int(input("정수:"))
    r=pzn(n)
    if r==1:
        print('양수')
    elif r==0:
        print('0')
        break
    else:
        print('음수')
