The correct order of those characters is \r\n.
\r translates to carriage return (CR, ASCII code 13) to tell the "typewriter" to push the carriage back to the left so that the cursor is back to the start of the line. \n translates to line feed (LF, ASCII code 10) which moves the cursor down the page one line. It's ancient technology, but \r\n is still what's used on Windows.