function three(input) {

    let fruit = input.shift();
    let smallOrBig = input.shift();
    let number = Number(input.shift());

    let sumSmall = 0;
    let sumBig = 0;
    let finalPrice = 0;



    // Watermelon", "Mango", "Pineapple" или "Raspberry
    if (fruit === "Watermelon") {
        switch (smallOrBig) {
            case "small":
                sumSmall = 2 * 56;
                finalPrice = sumSmall * number;
                break;

            case "big":
                sumBig = 5 * 28.70;
                finalPrice = sumBig * number;
                break;

        }

    } else if (fruit === "Mango") {
        switch (smallOrBig) {
            case "small":
                sumSmall = 2 * 33.66;
                finalPrice = sumSmall * number;
                break;

            case "big":
                sumBig = 5 * 19.60;
                finalPrice = sumBig * number;
                break;

        }

    } else if (fruit === "Pineapple") {
        switch (smallOrBig) {
            case "small":
                sumSmall = 2 * 42.10;
                finalPrice = sumSmall * number;
                break;

            case "big":
                sumBig = 5 * 24.80;
                finalPrice = sumBig * number;
                break;

        }

    } else if (fruit === "Raspberry") {
        switch (smallOrBig) {
            case "small":
                sumSmall = 2 * 20;
                finalPrice = sumSmall * number;
                break;

            case "big":
                sumBig = 5 * 15.20;
                finalPrice = sumBig * number;
                break;

        }

    }

    if (finalPrice >= 400 && finalPrice <= 1000) {
        finalPrice = finalPrice * 0.85;
    }
    if (finalPrice > 1000) {
        finalPrice = finalPrice * 0.50;
    }

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


}