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 <stdio.h>

int main(void)
{
	int num_K;
	char str_S[101];
	int i;
	int word_count;

	scanf("%d", &num_K);
	scanf("%s", str_S);

	word_count = 0;

	for (i = 0; str_S[i] != '\0'; i++)
	{
		word_count++;
	}

	if (word_count > num_K)
	{
		for (i = 0; i < num_K; i++)
		{
			printf("%c", str_S[i]);
		}

		printf("...\n");
	}
	else
	{
		printf("%s", str_S);
	}

	return 0;
}