Prepare Notification

If the message is too long, keep the longest prefix of complete words and append a space and an ellipsis; otherwise return it unchanged; if even the first word does not fit, output just the ellipsis.

The standard input/output conventions and constraints added by this site are given under "Input".

输入格式

3≤K≤500; the message has 1..500 characters, consisting of letters and single spaces. The first line contains K, and the second line contains the message.

输出格式

Output the notification, whose length is ≤K.

样例 1

输入：

15
And now here is my secret

输出：

And now ...

样例 2

输入：

15
There is an animal with four legs

输出：

There is an ...

样例 3

输入：

4
super dog

输出：

...

样例 4

输入：

20
how are you

输出：

how are you