Different systems may allow for ASCII (American Standard Code for Information Interchange) control character(s) (non-printable characters). Control characters such as:
<13> for a carriage return
<10> for a line feed
<32> for a space
<9> for a horizontal tab
<91> for a left square bracket
<93> for a right square bracket
can be imbedded in a program format. To enter control characters, type the decimal value equivalent of the ASCII code, delimited by angular brackets <>.