The following text was written to the standard output stream when the Number List program was executed from IntelliJ.
>>> help HELP - display a menu of commands DISPLAY - display the list of numbers PRINT - print a number (FIRST;LAST;nth) SWAP - exchange two elements (nth;mth) ADD - add a number to the list (FIRST;LAST) EXIT - terminate execution of the program >>> display 22 44 66 88 110 132 154 176 198 220 >>> print first 22 >>> print last 220 >>> print 3 66 >>> print 9 198 >>> swap 5 7 >>> display 22 44 66 88 154 132 110 176 198 220 >>> swap 1 10 >>> display 220 44 66 88 154 132 110 176 198 22 >>> help HELP - display a menu of commands DISPLAY - display the list of numbers PRINT - print a number (FIRST;LAST;nth) SWAP - exchange two elements (nth;mth) ADD - add a number to the list (FIRST;LAST) EXIT - terminate execution of the program >>> add first 100 >>> add last 200 >>> shownumbers ### Unrecognizable command: shownumbers >>> display 100 220 44 66 88 154 132 110 176 198 22 200 >>> exit