8-3 There is already a text file myt.txt. Please generate a two-dimensional list based on the text and print it out.

There is already a text file of BOOTEX.doc (it is recommended to first convert the BOOTEX.doc
BOOTEX.docx
file into a txt file BOOTEX.txt ), please generate a two-dimensional list based on the text and print the output. The requirements are as follows:

(1) The three numbers in each row in the list correspond to the number of the three letters a, b, and c in the row (case distinction is made, capital letters are not counted)

(2) Output the list

def count_letters(line):
    a_count = line.count('a') + line.count('A')
    b_count = line.count('b') + line.count('B')
    c_count = line.count('c') + line.count('C')
    return [a_count, b_count, c_count]

def main():
    file_name = "BOOTEX.txt"  # 请确保BOOTEX.txt文件存在，并且是文本文件
    result_list = []

    with open(file_name, "r") as file:
        for line in file:
            counts = count_letters(line)
            result_list.append(counts)

    # 打印输出二维列表
    for counts in result_list:
        print(counts)

if __name__ == "__main__":
    main()

PS: It is recommended to change the suffix name to txt first and put it in the same directory as the project file.