output produced by function call

[jimJohnson123]

For the following function can one of you guys take a look and see if what I have at the bottom is correct..

void f(char ch)
{
if (('A' <= ch) && (ch <= 'H'))
{
f(ch - 1);
cout << ch;
}
else
cout << endl;
}

Determine the output that will be produced by the following function calls
f('C')
I think it is B

f('G')
I think it is F