human
Give me a Python code to print the corresponding edited text given the following:
Emacs is a text editor which is widely used by many programmers.

The advantage of Emacs is that we can move a cursor without arrow keys and the mice. For example, the cursor can be moved right, left, down, and up by pushing f, b, n, p with the Control Key respectively. In addition, cut-and-paste can be performed without the mouse.

Your task is to write a program which simulates key operations in the Emacs-like editor. The program should read a text and print the corresponding edited text.

The text consists of several lines and each line consists of zero or more alphabets and space characters. A line, which does not have any character, is a blank line.

The editor has a cursor which can point out a character or the end-of-line in the corresponding line. The cursor can also point out the end-of-line in a blank line.

In addition, the editor has a buffer which can hold either a string (a sequence of characters) or a linefeed.

The editor accepts the following set of commands (If the corresponding line is a blank line, the word "the first character" should be "the end-of-line"):

* a
Move the cursor to the first character of the current line.
* e
Move the cursor to the end-of-line of the current line.
* p
Move the cursor to the first character of the next upper line, if it exists.
If there is no line above the current line, move the cursor to the first character of the current line.
* n
Move the cursor to the first character of the next lower line, if it exists.
If there is no line below the current line, move the cursor to the first character of the current line.
* f
Move the cursor by one character to the right, unless the cursor points out the end-of-line.
If the cursor points out the end-of-line and there is a line below the current line, move the cursor to the first character of the next lower line. Otherwise, do nothing.
* b
Move the cursor by one character to the left, unless the cursor points out the first character.
If the cursor points out the first character and there is a line above the current...
impor
assistant
#Here is Python code to print the corresponding edited text.
t sys

class Cursor:
    BOL = (0,1)

    def __init__(self, text):
        assert isinstance(text, list)
        self.text = text

        for i in range(len(self.text)):
            self.text[i] = list(self.text[i])

        self.buffer = ""
        self.line = 1
        self.pos = self.BOL

    def _check(self):
        assert self.line > 0

    def _get_pos_end_of_line(self):
        last_char = len(self.text[self.line-1])
        return (last_char, last_char+1)

    def has_prev_line(self):
        return self.line > 1

    def has_next_line(self):
        return self.line < len(self.text)

    def beginning_of_line(self):
        self.pos = self.BOL

    def end_of_line(self):
        self.pos = self._get_pos_end_of_line()

    def prev_line(self):
        if self.has_prev_line():
            self.line -= 1

    def next_line(self):
        if self.has_next_line():
            self.line += 1

    def right_pos(self):
        if self._get_pos_end_of_line() != self.pos:
            self.pos = (self.pos[0] + 1, self.pos[1] + 1)
        else:
            if self.has_next_line():
                self.line += 1
                self.pos = self.BOL

    def left_pos(self):
        if self.BOL != self.pos:
            self.pos = (self.pos[0] - 1, self.pos[1] - 1)
        else:
            if self.has_prev_line():
                self.line -= 1
                self.pos = self._get_pos_end_of_line()

    def remove_current_pos(self):
        if self._get_pos_end_of_line() != self.pos:
            self.text[self.line-1] = self.text[self.line-1][:self.pos[0]] + self.text[self.line-1][self.pos[1]:]
        else:
            if self.has_next_line():
                self.text[self.line-1][self.pos[0]:self.pos[0]] = self.text[self.line]
                self.text.pop(self.line)

    def remove_to_end_of_line(self):
        if self._get_pos_end_of_line() == self.pos:
            if self.has_next_line():
                self.remove_current_pos()
                self.buffer = '\n'
        else:
            self.buffer =...