function wildZoo(input) {
    const commandsObject = {Add: add,Feed: feed,};

    const animals = {};

    let comandLine = input.splice(0, input.indexOf("EndDay")).map(line => {
        let [action,animalNames, neededFood, arena] = line.split(/[:-]/)
        .map(x => isNaN(x) ? x : Number(x))
        let com = commandsObject[action]
        com (animalNames, neededFood, arena)
    })

    console.log(`Animals:`);

    Object.entries(animals).forEach(([animal, animalInfo]) => {
      console.log(`${animal} -> ${animalInfo.foodNeeded}g`);
    });

    const areas = {};
    Object.values(animals).forEach((info) => {
      if (!areas[info.area]) {
        areas[info.area] = 0;
      }

      areas[info.area]++;
    });

    console.log('Areas with hungry animals:');

    Object.keys(areas).forEach((area) => {
      console.log(` ${area}: ${areas[area]}`);
    });

    function add(name, foodNeeded, area) {
      if (!animals[name]) {
        return (animals[name] = { foodNeeded, area });
      }

      animals[name].foodNeeded += foodNeeded;
      animals[name].area = area;
    }

    function feed(name, food) {
      if (animals[name]) {
        animals[name].foodNeeded -= food;

        if (animals[name].foodNeeded <= 0) {
          delete animals[name];
          console.log(`${name} was successfully fed`);
        }
      }
    }
  }

wildZoo([
    "Add: Jamie-600-WaterfallArea",
    "Add: Maya-6570-WaterfallArea",
    "Add: Adam-4500-ByTheCreek",
    "Add: Bobbie-6570-WaterfallArea",
    "Feed: Jamie-2000",
    "Feed: Adam-2000",
    "Feed: Adam-2500",
    "EndDay"
]);