#!/usr/bin/python
import sys,socket
def print_array(*arr):
    array = arr
    for item in array:
        print item[4][0]
print '''this script is for host resolve
print "now this begin...
if you want to leave,please input "break"'''
while 1:
    try:
        host = raw_input("please input the host: ")
    except KeyboardInterrupt:
        print "\n",
        continue
    except :
        print "\n",
        continue
    if host == "break" or host == "":
        break
    result = socket.getaddrinfo(host,None,0,socket.SOCK_STREAM)
    print_array(*result)