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 (Clang 10.0.0) (judge verdict: Accepted)

#include<stdio.h>
#include<string.h>
 
int main(void)
{
	int a,c;
	char b[100];
	scanf("%d",&a);
	getchar(); 
	gets(b);
	c=strlen(b);
	if(a>=c)
		puts(b);
	else
		{
			for(int i=0;i<a;i++)
			{
				printf("%c",b[i]);
			}
			printf("...");
		}
	
	return 0;
 }