n = int(input())
o = {}
for _ in range(n):
a = input()
if o.get(a):
o[a] += 1
else:
o[a] = 1
for _ in range(n-1):
a = input()
o[a] -= 1
for key, value in o.items():
if value:print(key)
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
12 ms |
2772 KB |
Output is correct |
2 |
Correct |
14 ms |
2772 KB |
Output is correct |
3 |
Correct |
14 ms |
2868 KB |
Output is correct |
4 |
Correct |
16 ms |
2968 KB |
Output is correct |
5 |
Correct |
16 ms |
2908 KB |
Output is correct |
6 |
Correct |
148 ms |
10428 KB |
Output is correct |
7 |
Correct |
218 ms |
11760 KB |
Output is correct |
8 |
Correct |
263 ms |
13120 KB |
Output is correct |
9 |
Correct |
291 ms |
17724 KB |
Output is correct |
10 |
Correct |
307 ms |
17904 KB |
Output is correct |