// laba_4.3_XIII.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <iostream>
#include <clocale>
using namespace std;


int main()
{
	setlocale(LC_CTYPE, "rus");
	int k,i,j;
	cout<<"Введите k:"<<endl;
	cin>>k;
	char *simv = new char [k];
	cin>>simv[0];
	for (i=1;i<k;i++)
	{
		cin>>simv[i];
		for(j=0;j<i;j++)
		{
			if(simv[j]==simv[i])
			{
				i--;k--;
			}
		}
	}
	cout<<endl;
	for (i=0;i<k;i++)
		cout<<simv[i];
	cout<<endl;
	delete [] simv;
	return 0;
}