Magic Paper

magic Paper can find what symbol do think about from the list,

how its work? choose a number between 1 and 11 multiply this number with 9 and find the symbol that equals the result that you find, magic Paper will give you the same result in the next page, all operation past in your mind, the magic Paper can read what in your mind

note : magic Paper can not realy read the mind is just math operation, if you know how it's work let us know in comment.