Crackme in C++ - Nivel 1

#include <iostream>

int main()
{
    using namespace std;
    signed long int tuserial;
    const unsigned short int serial = 2569;
    cout << "\n Introduce el serial correcto para desactivar la bomba\n >>> ";
    cin >> tuserial;
    if (tuserial == serial)
    {
    cout << " Has desactivado la bomba, felicidades!";
    }
    else
    {
    cout << " BOOOOOOOOOOOOOOOOOOOOOM!!!!";
    }
    cin.sync();
    cin.get();
    return 0;
}