monitor simple_monitor 
{
    void say_hello (char id) 
    { 
        cout << "Hi! I am a process!" << endl; 
        cout << "My ID is: " << id << endl;
        cout << "Bye!" << endl;
    } 
} 

void process_hello(char id)
{ 
    say_hello(id); 
} 

main() 
{ 
    cobegin 
    { 
        process_hello('A'); process_hello('B'); process_hello('C'); 
    } 
    cout << "All processes finished" << endl; 
}