this is in slvoene language but here are instruction:
1.choose a 2 digit number(from 10 to 99) 2.substract both digits from this number.if you choose let say 83 you will do 83-8-3=72 3.find your result in the table and concentrate on the simbol that is next to this result. 4. click on the GREY square. you will get the sam simbol that you though of :)
if you want to try again ,click on "Poizkusi znova..." (try again)
amazing mind reader isnt it? ;)
do not do any spolers here please, i want that people use their mind .