Tap any key to make the horizontal slider move, pause for a bit, then tap some more to move the vertical one. Tap 6 times then 1-5 more times to delete a certain number of letters. If you mess up the position of the first slider, just move the other one to cancel.
.... ...|... ..|.. .....|..... .|. ...|. ...|... ..|..... .|. ...|. ...|.... ...|.... ....|... ..|..... .|.. ....|..... .| Note that the C/k square will always print a K.
