>>> help HELP - display a menu of commands DISPLAY - display the list of words PRINT - print a word (FIRST;LAST;nth) SWAP - exchange two elements (nth;mth) ADD - add a word the list (FIRST;LAST) EXIT - terminate execution of the program >>> display coding learning class college chess target person shapes string integer >>> swap 1 5 >>> display chess learning class college coding target person shapes string integer >>>