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<bits/stdc++.h>
#include<time.h>
#define pi acos(-1.0)
using namespace std;
int main()
{
//	long long begin_time=clock();
//	int t;
//	scanf("%d",&t);
//	while(t--)
//	{
		int n,i,j,flag=0,x,y=0,ma=0,mi=0x3f3f3f3f;
		char s[105];
	//	int a[],b[];
    	scanf("%d",&n);
	    scanf("%s",s);
	    x=strlen(s);
	    if(x==n)
	    printf("%s\n",s);
	    else
	    {
	    	for(i=0;i<n;i++)
	    	printf("%c",s[i]);
	    	printf("...\n");
		}
//	}
//	long long end_time=clock();
//	printf("time=%lldms\n",end_time-begin_time);
}