lines = []

with open('the_calls.txt') as file:
    for line in file:
        lines.append(line)

sorted_lines = sorted(lines, key=lambda line : int(line.split('\t')[1]), reverse=True)
B_lines = [i if 'B' in i else "" for i in sorted_lines]

with open('calls.txt', 'w') as file2:
    for line in sorted_lines:
        if 'A' in line:
            file2.write(line)
            # print(line)

    for line in B_lines:
        if line == B_lines[-1]:
            file2.write(line.rstrip())
        else:
            file2.write(line)
            # print(line)