here is the formula for goku. (G), and the formula for gabrielfeitob 5 (A),
now when you subtract (G - A = Z), and then subtract again (A - G = X),
find whether Z is less or greater than X, that is the winner.
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now when goku is too strong of an opponent, aka Z > X, you can always screw up the equation.
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To beat goku.. Use, Two Gokus :O