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 C (GCC 9.2.1) (judge verdict: Wrong Answer)

#include <string.h>
#include <stdio.h>

int main() {
  int k, i;
  char s[101], copy[101];
  scanf("%d", &k);
//  printf("%d", k);
  scanf("%s", s);
//  printf("%s", s);

  i = 0;
  while(s[i])
    i++;
//  printf("%d", i);

  if (i <= k)
    printf("%s", s);
  else {
    strncpy(copy, s, k);
    printf("%s", copy);
    printf("...");
  }
  return(0);
}