#include <iostream>
#include <cstdlib>

using namespace std;

int main(int argc, char *argv[])
{  system("chcp 1253");
   
   int   int_num = 999;
   float float_num = 99.99895;
   long  double big_num = 1250500750.75;

   cout << "12345678901234567890\n"; // πως κάνουμε IO format με την cout? 
   cout << int_num << endl;
   cout << float_num << endl;
   cout << big_num << endl;

   system("PAUSE");
   return 0;
}