Bug (rot 13):
V unir ab vqrn ubj vg unccrarq, ohg nsgre qbvat fbzrguvat (fhccbfrqyl jnvgvat n ohapu bs gvzr), jura lbh hfr gur "zbir svefg flzoby gb frpbaqnel fgevat" naq "zbir svefg flzoby bs frpbaqnel fgevat gb znva fgevat", vg ercynprf gur jubyr fgevat vafgrnq bs nqqvat gur yrggref. V.R., vs V unq "nop" naq V hfr gur znva -> frpbaqnel gjvpr, V jbhyq trg "o" nf gur frpbaqnel fgevat vafgrnq bs "on"
Svk: erserfu gur cntr.