((crypt) => {
const rot13 = c => {
c = c.codePointAt(0);
let d = c + 13;
if (d > (c <= 90 ? 90 : 122)) {
d -= 26;
}
return String.fromCodePoint(d);
}
const backwards = s => s.split("").reverse().join("");
return backwards(crypt.replace(/[a-z]/gi, rot13));
})("zbp.tavferbqunba@vu");