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>
int main(void){
	int k=0;
  	int num=0;
  	char s[100]={0};
  
	scanf("%d",&k);
  	scanf("%s",s);

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