import os, sys
import requests

def getSet(s):
    cur = s.split('"')
    res = list()
    for i in range(0, len(cur)):
        if (cur[i] == 'name'):
            res.append(cur[i + 2])

    return res

def changeE(s):
    res = ""
    for i in range(0, len(s)):
        if s[i] == 'ё':
            res += 'е'
        else:
            res += s[i]
    return res


handle = open("input.txt")
data = handle.read()
words = data.split(' ')

url = 'https://sociation.org/ajax/word_associations?word=' + words[0]
data = {}
res1 = requests.post(url, json=data).text

set1 = getSet(res1)

f = open('output.txt', 'w')

if words[0] == words[1]:
    for word in set1:
        f.write(changeE(word) + '\n')
else:
    url = 'https://sociation.org/ajax/word_associations?word=' + words[1]
    data = {}
    res2 = requests.post(url, json=data).text

    set2 = getSet(res2)

    for word in set1:
        if word in set2:
            f.write(changeE(word) + '\n')