function storeProvisions(storeProducts, purchasedProducts) {
    let product = '';
    let quantity = 0;
    const finalList = {};

    const storeLength = storeProducts.length;
    for (let i = 0; i < storeProducts.length; i += 2) {
        product = storeProducts[i];
        quantity = Number(storeProducts[i+1]);
        finalList[product] = quantity;
    }

    const purchasedLength = purchasedProducts.length;
    for (let j = 0; j < purchasedLength; j += 2) {
        if (purchasedProducts[j] in finalList) {
            finalList[purchasedProducts[j]] += Number(purchasedProducts[j+1]);
        } else {
            finalList[purchasedProducts[j]] = Number(purchasedProducts[j+1]);
        }
    }

    for (let [key, value] of Object.entries(finalList)) {
        console.log(`${key} -> ${value}`);
    }
}