You can include whitespace characters in the format control string.
Whitespace characters are the newline, carriage return, form-feed, space, and tab.
Some of these are represented by escape sequences and these are shown in the following table.
|\f||Form-feed or page eject|
|\r||Carriage return (for printers) or move to the beginning of the current line for output to the screen|
You use the escape sequence \\ to output the backslash character, \.
To write a % character to stdout, you use %%.