✅ How do I convert a char to ascii and ascii back to char?

I tried this:

int b = (int)'b';
int e = (int)'e';
int c = e - b;
Console.WriteLine("char is: " + c);

int b = (int)'b';
int e = (int)'e';
int c = e - b;
Console.WriteLine("char is: " + c);

int b = (int)'b';
int e = (int)'e';
int c = e - b;
Console.WriteLine("char is: " + c);

int b = (int)'b';
int e = (int)'e';
int c = e - b;
Console.WriteLine("char is: " + c);

and the output is:

char is:

basically .... nothing