#include <iostream>
#include <sstream>
#include <fstream>
using namespace std;

void OutputTable (ostream & outs);

int main()
{
   cout <<"This program just write various data to different output stream\n";
   cout <<"Where do you want the output go (f/t/s)?";
   char output;
   cin >> output;

   ofstream file;
   stringstream sstream;

   switch (output)
   {
     case 't':
	OutputTable (cout);
        break;
     case 'f':
	file.open("output.txt");
	OutputTable (file);
        file.close();
        break;
     case 's':
	OutputTable(sstream);

        string Table="*******************************\n";
        Table = Table+sstream.str();
        Table = Table+"*******************************\n";
     
        cout <<"Here is the table\n";
        cout <<Table;
        break;
   }
}

void OutputTable (ostream & outs)
{
   for (int i=1;i<10;i++)
   {
       for (int j=1;j<10;j++)
           outs << i*j <<" ";
       outs << endl;
   }
}