
    Design a function for the bank's joint loan approval system that determines how many pairs of co-applicants have compatible risk profiles by counting pairs of credit risk scores that, when XORed together, produce an even number, indicating balanced risk levels. The credit risk scores are provided as integers in a list, where each number represents a composite risk metric derived from the applicants' financial histories. The count of compatible pairs will help streamline the joint loan approval process by identifying balanced risk partnerships.
    

    
def find_even_pair(A):
    """
    Design a function for the bank's joint loan approval system that determines how many pairs of co-applicants have compatible risk profiles by counting pairs of credit risk scores that, when XORed together, produce an even number, indicating balanced risk levels. The credit risk scores are provided as integers in a list, where each number represents a composite risk metric derived from the applicants' financial histories. The count of compatible pairs will help streamline the joint loan approval process by identifying balanced risk partnerships.
    

    """
def find_even_pair(A):
    """
    Design a function for the bank's joint loan approval system that determines how many pairs of co-applicants have compatible risk profiles by counting pairs of credit risk scores that, when XORed together, produce an even number, indicating balanced risk levels. The credit risk scores are provided as integers in a list, where each number represents a composite risk metric derived from the applicants' financial histories. The count of compatible pairs will help streamline the joint loan approval process by identifying balanced risk partnerships.
    

    """
    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