#include <iostream>
#include <stdio.h>
#include <string>
#include <string.h>
using namespace std;
const int maxn = 200 + 100;
char ori_names[maxn][150];
char res_names[maxn][150];
int main()
{
freopen("in.txt", "r", stdin);
freopen("out.txt", "w", stdout);
int kasenum = 0, turtlenum = 0;
scanf("%d", &kasenum);
while (kasenum--)
{
scanf("%d", &turtlenum);
getchar();
for (int i = 0; i < turtlenum; i++)
gets(ori_names[i]);
for (int i = 0; i < turtlenum; i++)
gets(res_names[i]);
int p = turtlenum - 1, q = turtlenum - 1;
while (p >= 0)
{
if (!strcmp(ori_names[p], res_names[q]))
q--;
p--;
}
while (q >= 0)
printf("%s\n", res_names[q--]);
printf("\n");
}//while
return 0;
}
uva 10152
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