[Dev-C++] Program won't compile

[<k.a...@at...>]

Can someone please help me.  I ran this program a couple of times in my compiler Dev C++  several times and I keep getting errors but I can't find the errors.  

I am new to C++ and I am a teacher trying to teach my students game design.  I have listed the source codes that I am using.  


// Game Stats
// Demonstrates declaring and initializing variables
#include <iostream>
using namespace std;
int main()
{
    int score;
    double distance;
    char playAgain;
    bool shieldsUp;
    
    short lives, aliensKilled;
    
    score = 0;
    distance = 1200.76;
    playAgain='y';
    shieldsUp= true;
    lives =3;
    aliensKilled = 10;
    
    double engineTemp = 6572.89;
    
    cout << "\nscore:"        << score << endl;
    cout <<"distance: "    <<distance<< endl;
    cout <<"playAgain:"    <<playAgain << endl;
    //skipping shieldsUp since you don't generally print Boolean values
    cout<<"lives:"    <<lives <<endl;
    cout <<"aliensKilled: " <<aliensKilled << endl;
    cout << " engineTemp:"    <<engineTemp << endl;
    
    int fuel;
    cout << "\nHow much fuel?";
    cin >> fuel;
    cout<<"fuel:" << fuel << endl;
    
    typedef unsigned short int ushort;
    ushort bonus = 10;
    cout << "\nbonus:" << bonus << endl;
    system ("PAUSE");
    return 0;
}
Kathy Elia-
k.a...@wo...