I don’t know how to set my function data type as a vector?

```
#include <iostream>
#include <vector>
// Define first_three_multiples() here:
int first_three_multiples(int num) {
return std::vector = (num, num * 2, num * 3);
}
int main() {
for (int element : first_three_multiples(8)) {
std::cout << element << "\n";
}
}
```

That’s my code and I don’t know what’s wrong with it.