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

int main(void){
  
	char s[105];
  int k;
  
  scanf("%d", &k);
  scanf("%s", s);
  
  for(int i=0;i<k;i++){
    if(s[i]=='\0'){
      printf("%s", s);
      return 0;
    }
  }

  
  if(s[k-1]!='\0'){
    for(int i=0; i<k;i++){
      printf("%c", s[i]);
    }
    printf("...");
    return 0;
  }

	else {
      printf("%s", s);
    }

  return 0;
}