
    Given a list of binary traffic sensor readings from different intersections along delivery routes, determine the number of intersection pairs that have compatible traffic flow patterns. Two intersections are considered to have compatible traffic flows when the XOR of their sensor readings results in an even number, allowing for efficient route adjustments.
    

    
def find_even_pair(A):
    """
    Given a list of binary traffic sensor readings from different intersections along delivery routes, determine the number of intersection pairs that have compatible traffic flow patterns. Two intersections are considered to have compatible traffic flows when the XOR of their sensor readings results in an even number, allowing for efficient route adjustments.
    

    """
def find_even_pair(A):
    """
    Given a list of binary traffic sensor readings from different intersections along delivery routes, determine the number of intersection pairs that have compatible traffic flow patterns. Two intersections are considered to have compatible traffic flows when the XOR of their sensor readings results in an even number, allowing for efficient route adjustments.
    

    """
    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