function calculateSum() {
    // 30ÀÏ ±âÁØ ÇÕ°è °è»ê
    const salary30List = document.querySelectorAll('.salary_30');
    const food30List = document.querySelectorAll('.food_30');
    const sum30List = document.querySelectorAll('.sum_food_30_salary_30');


    for (let i = 0; i < salary30List.length; i++) {
        const salary30 = parseFloat(salary30List[i].textContent.replace(/,/g, ''));
        const food30 = parseFloat(food30List[i].textContent.replace(/,/g, ''));
        sum30List[i].textContent = (salary30 + food30).toLocaleString();
    }


    // 31ÀÏ ±âÁØ ÇÕ°è °è»ê
    const salary31List = document.querySelectorAll('.salary_31');
    const food31List = document.querySelectorAll('.food_31');
    const sum31List = document.querySelectorAll('.sum_food_31_salary_31');


    for (let i = 0; i < salary31List.length; i++) {
        const salary31 = parseFloat(salary31List[i].textContent.replace(/,/g, ''));
        const food31 = parseFloat(food31List[i].textContent.replace(/,/g, ''));
        sum31List[i].textContent = (salary31 + food31).toLocaleString();
    }
}


document.addEventListener('DOMContentLoaded', calculateSum);