function touristShop(input) {
    let budget = Number(input[0]);

    let index = 1;
    let command = input[index++];
    let productsCount = 0;
    let totalPrice = 0;
    let notEnought = false;
    let daysCount = 1;

    while (command !== "Stop") {
        let productName = command;
        let priceProduct = Number(input[index++]);

        if (daysCount % 3 === 0) {
            priceProduct /= 2;
        }

        if (priceProduct > budget) {
            notEnought = true;
            console.log(`You don't have enough money!`);
            console.log(`You need ${priceProduct - budget} leva!`);
            break;
        }

        budget -= priceProduct;
        totalPrice += priceProduct;


        productsCount++;
        daysCount++;
        command = input[index++]
    }

    if (!notEnought) {
        console.log(`You bought ${productsCount} products for ${totalPrice} leva.`)
    }
}