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<string.h>                                                
int main(void){                                                   
   int K,i;                                                       
   char S[100];                                                   
                                                                  
   scanf("%d",&K);                                                
   scanf("%s",S);                                                 
   int len = strlen(S);                                           
                                                                  
   for(i = 0; i < K; i++){                                        
      printf("%c",S[i]);                                          
   }                                                              
   if(len > K){                                                   
      printf("...");                                              
   }                                                              
   return 0;                                                      
}