#include <bits/stdc++.h>
using namespace std;
struct word {
string word;
int idx;
} a[101], b[101];
int main() {
int n;
cin >> n;
for (int i = 1; i <= n; i++) {
cin >> a[i].word >> b[i].word;
a[i].idx = i;
b[i].idx = i;
}
string s, s2 = "", w = "";
cin >> s;
s += ' ';
bool is = 0, is2 = 0;
for (int i = 0; i < s.length(); i++) {
if (s[i] >= 'a' && s[i] <= 'z') {
w += s[i];
} else {
is = 0;
for (int j = 1; j <= n; j++) {
if (w == a[j].word) {
is = 1;
w = b[j].word;
}
}
if (is)
s2 += w;
else if (w != "")
s2 += "UNK";
if (s[i] <= 'a' || s[i] >= 'z') {
s2 += s[i];
}
w = "";
is2 = 0;
}
}
for (int i = 0; i < s2.length() - 1; i++) {
cout << s2[i];
}
return 0;
}