Ton

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_ f(int a, int b, int c, int d, int e, int f, int g, int h, int i, int j) {
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  return (f, j, a, b, i, g, d, e, h, c);   ;; optimal code is 3 ops, 6 bytes
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  ;; s6 s0 s4 XCHG3  s4 s8 s9 XCHG3  8 0 REVERSE
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}
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