Football Souvenirs

function footballSouvenirs(input) {
    let country = input[0];
    let souvenir = input[1];
    let volume = Number(input[2]);
    let print = "";
    let sum = 0;

    if (country === "Argentina") {
        if (souvenir === "flags") {
            sum = 3.25;
        } else if (souvenir === "caps") {
            sum = 7.20;
        } else if (souvenir === "posters") {
            sum = 5.10;
        } else if (souvenir === "stickers") {
            sum = 1.25;
        } else {
            print = "Invalid stock!";
        }
    } else if (country === "Brazil") {
        if (souvenir === "flags") {
            sum = 4.20;
        } else if (souvenir === "caps") {
            sum = 8.50;
        } else if (souvenir === "posters") {
            sum = 5.35;
        } else if (souvenir === "stickers") {
            sum = 1.20;
        } else {
            print = "Invalid stock!";
        }
    } else if (country === "Croatia") {
        if (souvenir === "flags") {
            sum = 2.75;
        } else if (souvenir === "caps") {
            sum = 6.90;
        } else if (souvenir === "posters") {
            sum = 4.95;
        } else if (souvenir === "stickers") {
            sum = 1.10;
        } else {
            print = "Invalid stock!";
        }
    } else if (country === "Denmark") {
        if (souvenir === "flags") {
            sum = 3.10;
        } else if (souvenir === "caps") {
            sum = 6.50;
        } else if (souvenir === "posters") {
            sum = 4.80;
        } else if (souvenir === "stickers") {
            sum = 0.90;
        } else {
            print = "Invalid stock!";
        }
    } else {
        print = "Invalid country!";
    }

    if (sum > 0) {
        console.log(`Pepi bought ${volume} ${souvenir} of ${country} for ${(sum * volume).toFixed(2)} lv.`);
    } else {
        console.log(print);
    }
}