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: Accepted)

#include <math.h>
#include <stdio.h>
#include <string.h>
char s[101];
int n;
int main(void) {
    scanf("%d", &n);
    scanf("%s", s);
    if (n < strlen(s)) {
        for (int i = 0; i < n; i++) {
            printf("%c", s[i]);
        }
        printf("...\n");
    } else {
        for (int i = 0; i < strlen(s); i++) {
            printf("%c", s[i]);
        }
        printf("\n");
    }
}