
    Write a function to calculate the total risk score from evening measurements that show stable patterns in a patient's monitoring data. The function should only consider risk scores taken during evening checkups (even-indexed positions) that are even numbers, indicating stable health patterns. The sum will help assess the patient's overall stability during evening monitoring periods.
    

    
def sum_even_and_even_index(arr):
    """
    Write a function to calculate the total risk score from evening measurements that show stable patterns in a patient's monitoring data. The function should only consider risk scores taken during evening checkups (even-indexed positions) that are even numbers, indicating stable health patterns. The sum will help assess the patient's overall stability during evening monitoring periods.
    

    """
def sum_even_and_even_index(arr):
    """
    Write a function to calculate the total risk score from evening measurements that show stable patterns in a patient's monitoring data. The function should only consider risk scores taken during evening checkups (even-indexed positions) that are even numbers, indicating stable health patterns. The sum will help assess the patient's overall stability during evening monitoring periods.
    

    """
    i = 0
    sum = 0
    for i in range(0, len(arr), 2):
        if arr[i] % 2 == 0:
            sum += arr[i]
    return sum