#include <iostream>
#include <cstdlib>

using namespace std;

int main(void)
{
   int n;
   cout << "dar el numero de la tabla que desea imprimir\n";
   cin >> n;

   int k;
   k= 1;
   int suma;
   suma= 0;
   while (k<=n)
      {
       suma+= (2*k-1); 
       k= k+1;
      }
   cout << "suma = " << suma << endl;
   return EXIT_SUCCESS;
}