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const map = ([ head, ...tail ], fn) => 
  (head === undefined && !tail.length) ? [] :
  (tail.length === 0) ? [ fn(head) ] :
  [ fn(head), ...map(tail, fn) ];

const filter = ([ head, ...tail ], fn) => {
  const newHead = fn(head) ? [ head ] : [];
  return tail.length ? [ ...newHead, ...(filter(tail, fn)) ] : newHead;
}

73nko

const timer = time =>
  new Promise(resolve => setTimeout(resolve, time));

73nko

/**
 * Creates an array with the span of numbers going from `first` and ending at
 * `last` if possible depending on the specified step value.
 * @param {number} first
 *   First number that should appear in the returned array.
 * @param {number} last
 *   Last number that should appear in the returned array.
 * @param {number=} opt_step 
 *   Defaults to `1` if not given or if `0` or `NaN` is specified.  The
 *   difference between each subsequent number in the returned array.

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Array.prototype.removeDuplicates = function(){ 
  return this.reduce((result,nextItem)=>result.includes(nextItem) ? result : result.concat(nextItem),[]); 
}

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function chunk(array, size) {
  //declaring variable 'chunked' as an empty array
  let chunked = []

  //looping through the array until it has been entirely "manipulated" or split into our subarrays
  while(array.length > 0) {
    //taking the spliced segments completely out of our original array
    //pushing these subarrays into our new "chunked" array
    chunked.push(array.splice(0, size))
  }

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Array.prototype.sortBy = function(key, ascending = true) {
  return this.sort((a, b) => {
    if (ascending) {
      return a[key] > b[key] ? 1 : a[key] < b[key] ? -1 : 0;
    } else {
      return a[key] > b[key] ? -1 : a[key] < b[key] ? 1 : 0;
    }
  });
};
var arr = [

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Math.round(Math.random() * 1E2)

73nko

self.addEventListener('install', (e) => {
    e.waitUntil(
        caches.open("precache").then((cache) => cache.add("/broken.png"))
    );
});

function isImage(fetchRequest) {
    return fetchRequest.method === "GET" && fetchRequest.destination === "image";
}

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function downloadFile(data, fileName, type="text/plain") {
  // Create an invisible A element
  const a = document.createElement("a");
  a.style.display = "none";
  document.body.appendChild(a);

  // Set the HREF to a Blob representation of the data to be downloaded
  a.href = window.URL.createObjectURL(
    new Blob([data], { type })
  );

73nko

'use strict';

const fs = require('fs');

process.stdin.resume();
process.stdin.setEncoding('utf-8');

let inputString = '';
let currentLine = 0;