While I was submitting a question I got this captcha code:
I don't know how to type that, my keyboard doesn't have a pi key.
Now, for the actual typing, it depends on your platform:
On Windows, provided you have the
HKEY_CURRENT_USER\Control Panel\Input Method!EnableHexNumpad registry value set to
1, you can hold Alt, type + (on the numeric keypad), then 3, B, 1, release Alt, hold Alt again, type +, 3, C, 0, release Alt, hold Alt one last time, type +, 3, B, F and release Alt.
On Linux, it's a little easier (at least with GTK-based browsers): You have to type Ctrl+Shift+U, 3, B, 1, Ctrl+Shift+U, 3, C, 0, Ctrl+Shift+U, 3, B, F.
As you can see, it is not trivial, and a lot of effort just to solve one captcha. There is no shame in requesting another, as hammar suggests, if you're short on time or find this exercise a little futile.
Futile Update: In light of psubsee2003's comment, I'm not so sure about that omicron now. All references to
απο ("from" in Greek) that I can find around have a tonic accent on the omicron (
από), which means the final character is probably Greek Small Letter Omicron With Tonos (
U+03CC). Not trivial indeed.