Problem:
Score: 200 points

Problem Statement

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.

Sample Input 1

7
nikoandsolstice

Sample Output 1

nikoand...

nikoandsolstice has a length of 15, which exceeds K=7.

We should extract the first 7 characters in this string, append ... to the end of them, and print the result nikoand....

Sample Input 2

40
ferelibenterhominesidquodvoluntcredunt

Sample Output 2

ferelibenterhominesidquodvoluntcredunt

The famous quote from Gaius Julius Caesar.

Solution in Fortran (GNU Fortran 9.2.1) (judge verdict: Wrong Answer)

program main
character S*100
integer K,K2,I

read *,K
read *,S
I = K + 1
K2 = len_trim(S)
if( K < K2 ) then
  S(I:K2) = ""
  S(I:I) = "."
  S(I+1:I+1) = "."
  S(I+2:I+2) = "."
end if
print '(A)', trim(S)
end program main