C++ Variable Type with input

Question

Hi there! Im migrating from javascript to C++ and am curious as to how This works in C++:
```
#include <iostream>
using namespace std;

int main()
{
int a;
cout << "Please enter a number \n";
cin >> a;

return 0;
}
```

I am confused about how cin gives a string to an int variable. Does C++ automatically convert it to an int? Or is there something else going on?