Radio 4 Today Programme Puzzle 140

[eiei0]

Does anyone have the faintest idea what they are talking about?

Thirteen rotters stole my answer and they ROTated it by 4 and then ROTated it by 10 and all I have left is Uccr ziqy hc ozz QmpsfTwfgh Uwfzg! - can you help me get my answer back?

Explanation:

Solution Rot13 is a letter substitution cipher, it’s a special case of the Caesar cipher. To obtain the answer, undo the ROT13 4 letter shift and the ROT13 10 letter shift. To get back to the original answers you need to rotate 26 letters then a=a again. 26-14 = 12. Using a ROT13 12 letter shift will return the deciphered text.

[Murphysrocks]

Basically, a ROT 12-letter shift means "Change each letter into the 12th letter after it".
When counting up to the 12th letter, treat the alphabet as a loop, where A is the next letter after Z, if necessary.
So, adding 12 letters on to "U" brings you to "G".
And adding 12 letters on to each letter of
"Uccr ziqy hc ozz QmpsfTwfgh Uwfzg!"
gives you
"Good luck to all CyberFirst Girls!".