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Let f: {1, 2, 3} -> {1, 2, 3} be a funct...

Let `f: {1, 2, 3} -> {1, 2, 3}` be a function. Then the number of functions `g : {1, 2, 3} -> {1, 2, 3}`. Such that `f(x) = g(x)` for at least one `x in {1, 2, 3}` is

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