
    Write a function that determines how many questions on a multiple-choice test have identical answers across a student's submission, the answer key, and a reference test form. The function should compare the numerical values (1-4 representing A-D) at each position in these three sets of answers to identify perfect matches, helping identify consistent patterns in student responses.
    

    
def count_samepair(list1, list2, list3):
    """
    Write a function that determines how many questions on a multiple-choice test have identical answers across a student's submission, the answer key, and a reference test form. The function should compare the numerical values (1-4 representing A-D) at each position in these three sets of answers to identify perfect matches, helping identify consistent patterns in student responses.
    

    """
def count_samepair(list1, list2, list3):
    """
    Write a function that determines how many questions on a multiple-choice test have identical answers across a student's submission, the answer key, and a reference test form. The function should compare the numerical values (1-4 representing A-D) at each position in these three sets of answers to identify perfect matches, helping identify consistent patterns in student responses.
    

    """
    result = sum((m == n == o for (m, n, o) in zip(list1, list2, list3)))
    return result