Simple console dice roller made in C++

Works great, ready to compile and run.

// Ultima Dice 0.1 Beta
// xIRCxes++ Project by Neo Nemesis
// Dice Roller

#include <iostream>
#include <cstdlib>
#include <time.h>
using namespace std;

int main ()
{
    srand(time(NULL));
    //cout << "Ultima Dice 0.1 Beta - xIRCxes++ Project by Neo Nemesis" <<endl;
    cout << "ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»" <<endl;
    cout << "ºÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»º" <<endl;
    cout << "ºº                             Ultima Dice 1.0                             ºº" <<endl;
    cout << "ºº                             By: Neo Nemesis                             ºº" <<endl;
    cout << "ºº                             xIRCxes Project                             ºº" <<endl;
    cout << "ºº                                                                         ºº" <<endl;
    cout << "ºº                  Enter 1 for the main menu and press enter              ºº" <<endl;
    cout << "ºº                              Enter 0 to exit                            ºº" <<endl;
    cout << "ºº                                                                         ºº" <<endl;
    cout << "ºÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼº" <<endl;
    cout << "ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼ" <<endl;
    int a;
    cout << "Selection: ";
    cin >> a;
    if (a=1) {
       cout << "ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»" <<endl;
       cout << "ºÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»º" <<endl;
       cout << "ºº                         Enter 1 to Roll Dice                            ºº" <<endl;
       cout << "ºº                            Enter 0 to exit                              ºº" <<endl;
       cout << "ºº                    Enter selection and press enter.                     ºº" <<endl;
       cout << "ºÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼº" <<endl;
       cout << "ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼ" <<endl;
       cout << "Selection: ";
       cin >> a;
       while (a!=0) {
          //Dice Roller
          int D, N;
          int result = 0;
          cout << "Enter the number of dice you wish to roll: ";
          cin >> N;
          cout << "Enter the size of the dice you wish to roll (i.e. the sides): ";
          cin >> D;
          // process
          for(int x=0;x<N;x++) {
             cout << "You rolled\t" << (D = rand()%20+1) << endl;
             result += D;
          }
          cout << "\nTotal = " << result << endl;
          cout << "Roll again?" <<endl;
          cout << "Enter 1 to roll again, 0 to exit." <<endl;
          cin >> a;
       }
   }
   return 0;
}