... (Triple Dots)

We have a string S consisting of lowercase English letters.

If the length of S is at most K, print S without change.

If the length of S exceeds K, extract the first K characters in S, append ... to the end of them, and print the result.

Constraints

• K is an integer between 1 and 100 (inclusive).
• S is a string consisting of lowercase English letters.
• The length of S is between 1 and 100 (inclusive).

Input

Input is given from Standard Input in the following format:

K S

Output

Print a string as stated in Problem Statement.

Examples

Input

7 nikoandsolstice

Output

nikoand...

Input

40 ferelibenterhominesidquodvoluntcredunt

Output

ferelibenterhominesidquodvoluntcredunt

inputFormat

Input

Input is given from Standard Input in the following format:

K S

outputFormat

Output

Print a string as stated in Problem Statement.

Examples

Input

7 nikoandsolstice

Output

nikoand...

Input

40 ferelibenterhominesidquodvoluntcredunt

Output

ferelibenterhominesidquodvoluntcredunt

样例

7
nikoandsolstice

nikoand...