# -*- coding: utf-8 -*-

import os, sys
import sysv_ipc


str1 = "abcdefghijklmnopqrstyvwxyz"
str2 = "wedhsjkmas"

q = sysv_ipc.MessageQueue(sysv_ipc.IPC_PRIVATE, sysv_ipc.IPC_EXCL| sysv_ipc.IPC_CREAT)
p = os.fork()

if p == 0: # in child
    out = ""
    for i in str2:
        for j in str1:
            if i == j:
                out += i
                break
    q.send(out)


else:
    print q.receive()