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
import java.util.*;

public class Main{
	int N;
	Scanner reader = new Scanner(System.in);
	public static void main(String[]args) {
		 Main p = new Main();
		 p.run();
	}

	public void run() {
		N = reader.nextInt();
		String s = reader.next();
		if(s.length()<=N)
			System.out.print(s);
		else
			System.out.print(s.substring(0,N)+"...");
	}
}
