A typical mistake made by most beginning programming students. What's missing from the following program?

#include <iostream>
int main()
{
    std::cout << "Hello";
    std::cout << "World\n";
    return (0);
}

Source code

Hint 1: "Hello World" is two words. Only one word is printed.

Hint 2: The word that's printed is not a real word.

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Answer

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