
    Given a list of patient risk scores derived from medical indicators, determine the number of pairs of scores that, when XORed together, indicate compatible risk factors (resulting in an even number). Each score in the list is a binary combination of health metrics, and pairs with even-numbered XOR results may represent interrelated health risk patterns that could affect readmission probability.
    

    
def find_even_pair(A):
    """
    Given a list of patient risk scores derived from medical indicators, determine the number of pairs of scores that, when XORed together, indicate compatible risk factors (resulting in an even number). Each score in the list is a binary combination of health metrics, and pairs with even-numbered XOR results may represent interrelated health risk patterns that could affect readmission probability.
    

    """
def find_even_pair(A):
    """
    Given a list of patient risk scores derived from medical indicators, determine the number of pairs of scores that, when XORed together, indicate compatible risk factors (resulting in an even number). Each score in the list is a binary combination of health metrics, and pairs with even-numbered XOR results may represent interrelated health risk patterns that could affect readmission probability.
    

    """
    count = 0
    for i in range(0, len(A)):
        for j in range(i + 1, len(A)):
            if (A[i] ^ A[j]) % 2 == 0:
                count += 1
    return count