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<stdlib.h>
typedef long long ll;
int main(void)
{
  int k,t,i=0;
  scanf("%d",&k);
  char str[110],ans[110];
  scanf("%s",str);
  while(str[i]!='\0'){
    ans[i]=str[i];
    i++;
  }
  if(i<=k) printf("%s",ans);
  else{
    ans[k]='.';
    ans[k+1]='.';
    ans[k+2]='.';
    ans[k+3]='\0';
    printf("%s",ans);
  }
  
  return 0;
}