PlanetTheCloud

String.prototype.padLeft = function (n, str) {
  if (n < String(this).length) {
    return this.toString();
  }
  else {
    return Array(n - String(this).length + 1).join(str || '0') + this;
  }
}

function crc16(s) {

PlanetTheCloud

var GoogleFormsTool = {
    getScore() {
        let correct = document.getElementsByClassName('freebirdFormviewerViewItemsItemCorrect'),
            incorrect = document.getElementsByClassName('freebirdFormviewerViewItemsItemIncorrect'),
            total = correct.length + incorrect.length,
            incorrectDisplay = [],
            yIncrement = 0;

        for (let k of incorrect) {
            k.parentElement.id = "gfcs_incorrect_" + yIncrement++;