emmm...你这个本地测试过吗？input输入字符串要加引号的，换成raw_input试试？
by Nobelium_255 @ 2021-06-13 09:09:30
@[梦魂初醒](/user/473635) 本地运行过，运行成功的
by Zhoujin_py @ 2021-06-21 16:40:53
```python
n = int(input())
l = []
for i in range(n):
l.append(input())
t = input().strip() #数据输入时加strip
tl = len(t)
s = []
for i in l:
if t == i[:tl]: #i[:t1]才是完整前缀
s.append(i)
s.sort()
for i in s:
print(i)
```
帮你改了改应该要这么写
by Y_W_Z @ 2021-06-24 20:05:10