source/app.d is
```
import std.stdio;
void main() {
char letter;
write("Please enter a letter: ");
readf(" %s", &letter);
writeln("The letter that has been read: ", letter);
}
```
What are steps to type letter: ğ
in Fedora Linux using an American Keyboard?
Is there a document that indicates how to type many Unicode
characters as a series of keystrokes?
