First you get the question which riddle you want to do.

Enter 0 for Three sum riddle
Enter 1 for Four sum riddle
Enter 2 for Product riddle

Second, you get the question whether you want to see the trees (for Three/Four sum riddle)

Enter 0 for NO
Enter 1 for YES

Then enter the announcements, which can be integers 0,1,2 for the three sum riddle and product riddle and 0,1,2,3 for the four sum riddle. If the final number is known, enter 3 for the three sum riddle and product riddle and 4 for the four sum riddle. Then enter the person who knows the riddle and the final number. The solutions will then be shown.