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 {
    public static void main(String[] args){
    
    Scanner sc = new Scanner(System.in);
    	int A = sc.nextInt();
   		String B = sc.next();
        int n = B. length();
      if(A>=n){   
   			System.out.println(B);
  	  }else{
		    System.out.println(B.substring(0,A)+"...");
}
    }
}