
    Write a function that determines how many pairs of patient severity scores in the emergency room triage list will result in a manageable combined risk level when assessed together. Two severity scores create a manageable risk level when their XOR operation yields an even number, helping optimize resource allocation for incoming patients.
    

    
def find_even_pair(A):
    """
    Write a function that determines how many pairs of patient severity scores in the emergency room triage list will result in a manageable combined risk level when assessed together. Two severity scores create a manageable risk level when their XOR operation yields an even number, helping optimize resource allocation for incoming patients.
    

    """
def find_even_pair(A):
    """
    Write a function that determines how many pairs of patient severity scores in the emergency room triage list will result in a manageable combined risk level when assessed together. Two severity scores create a manageable risk level when their XOR operation yields an even number, helping optimize resource allocation for incoming patients.
    

    """
    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