def __main__():
    id=int(random.uniform(0,2**k))
    node=Node(id)
    join(node, initialContact)
    
    line=raw_input('Enter an IP to scan: ').trim()
    key=long(sha.new(line).hexdigest(),16)
    value=lookup(node, key)
    if value==None:
        f=os.popen('nmap '+args[1])
        lines=f.readlines()
        value=string.join(lines, '\n')
        store(node, key, value)