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
#!/usr/bin/env python2

import sys

input = iter(sys.stdin.readlines()).next

def main():
   K = int(input())
   S = input().strip()
   if len(S) <= K:
      print(S)
   else:
      print(S[:K] + '...')

   return 0

if __name__ == '__main__':
   sys.setrecursionlimit(10000)
   main()
