pet shop

function zooMarket(input) {
    let dogsCount = Number(input.shift());
    let animalsCount = Number(input.shift());
    let foodDogs = dogsCount * 2.5;
    let foodAnimals = animalsCount * 4;
    let totalSum = foodDogs + foodAnimals;

    console.log(`${totalSum.toFixed(2)} lv.`);
}

zooMarket(["5", "4"]);