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: Accepted)

#include <stdio.h>
#include <string.h>
int main(void){
    // Your code here!
    int K;
    char S[105],Ans[105];
    
    scanf("%d",&K);
    
    scanf("%s",S);
    
    for(int i = K;i <= 105;i++){
        Ans[i] = '\0';
    }
    
    for(int i = 0;i <= K-1;i++){
        Ans[i] = S[i];
    }
    
    int n = strlen(S);
    
    if(n >= K+1){
        for(int i = 0;i <= 2;i++){
            Ans[K + i] = '.';
        }
    }
    
    
    printf("%s",Ans);
   
   
    return 0;
}