JSFiddle - React, Tailwind, and code Playground

JavaScript

var ul = document.createElement("ul"), i, x, list = [];
ul.innerHTML = "";
for (i = 11; i <= 99; i += 1) {
	x = i + Number(i.toString()[1] + i.toString()[0]);
  if (list.indexOf(x) === -1) {
  	list[list.length] = x;
  	ul.innerHTML += "<li>" +x + "</li>";
  }
}
document.body.appendChild(ul);