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 <stdlib.h>
#include <string.h>

int main(){
    int x, count = 0;
    int i;
    if(scanf("%d\n", &x) == EOF)
        return -1;
    char s[100];
    if(fgets(s, 100, stdin) == NULL)
        return -1;

    for(i = 0; i < x; i++){
        if(s[i] == '\n'){
            break;
        }
        count++;
        printf("%c", s[i]);
    }
    
    if(x == count && s[x] != '\n' && s[x-1] != '\n' && s[x] != '\0')
        printf("...\n");

    return 0;
}