hi im new to c++ (started today) and im reading a book about c++ (called C++ Programming A)

Well i started to read and learned the first code and wrote it in Microsoft Visual C++ and i get a error (error C2065: 'cout' : undeclared identifier) i dont know why cause ive written exactly what it says in the book, and can post the code to

# include <iostream>
int main ()
{
int tal1=5, tal2=11, produkt;
produkt=tal1*tal2;
cout << "Produkten är" << produkt;
}


one more question what am i supposed to write in () after int main.?

Thanks in forehand ( and by the way a great forum)