Four plaques each containing a variety of numbers are displayed on a small stand. The plaques have different numbers on each side. By rearranging the plaques over 300 different combinations of numbers can be achieved.
A spectator is now asked to rearrange the plaques in any order he or she wishes and then to add up all of the resulting four digit numbers.
The performer without even viewing the numbers the spectator selected can instantly announce the answer! \
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