function smallShop(product, city, quantity) {
    quantity = Number(quantity);
    //let product = products;
    //let city = cities;
    //let quantity = Number(quantities);
    let price = 0;

    if (city == 'Sofia') {
        switch (product) {
            case 'coffee':
                price = quantity * 0.50;
                break;
            case 'water':
                price = quantity * 0.80;
                break;
            case 'beer':
                price = quantity * 1.20;
                break;
            case 'sweets':
                price = quantity * 1.45;
                break;
            case 'peanuts':
                price = quantity * 1.60;
                break;
        }

    } else if (city === 'Plovidiv') {
        switch (product) {
            case 'coffee':
                price = quantity * 0.40;
                break;
            case 'water':
                price = quantity * 0.70;
                break;
            case 'beer':
                price = quantity * 1.15;
                break;
            case 'sweets':
                price = quantity * 1.30;
                break;
            case 'peanuts':
                price = quantity * 1.50;
                break;
        }

    } else if (city === 'Varna') {
        switch (product) {
            case 'coffee':
                price = quantity * 0.45;
                break;
            case 'water':
                price = quantity * 0.70;
                break;
            case 'beer':
                price = quantity * 1.10;
                break;
            case 'sweets':
                price = quantity * 1.35;
                break;
            case 'peanuts':
                price = quantity * 1.55;
                break;
        }
    }
    console.log(price);
}