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()
{
    char S[105];
    int i,length=0,k;

    scanf("%d",&k);
    scanf("%s",&S);


        for(i=0;S[i]!='\0';i++)
        {
            length++;
        }


    if((length==k)||(length<k))
    {
        printf("%s\n",S);
    }
    if(length>k)
    {
        for(i=0;i<k;i++)
        {
            printf("%c",S[i]);
        }
        printf("...\n");
    }
    return 0;
}