Who cares about this ?

Lol, I like how all the econbros stopped bullying me when I posted the problem -- thought so. In case you fieckers were stuck:

Without loss of generality, take <span class="MathJax_Preview" style="color: inherit; display: none;"></span><span class="MathJax" id="MathJax-Element-13-Frame" tabindex="0" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>n</mi><mo>=</mo><mn>3</mn></math>" role="presentation" style="position: relative;"><nobr aria-hidden="true"><span class="math" id="MathJax-Span-190" style="width: 3.103em; display: inline-block;"><span style="display: inline-block; position: relative; width: 2.552em; height: 0px; font-size: 121%;"><span style="position: absolute; clip: rect(1.519em, 1002.483em, 2.621em, -999.997em); top: -2.407em; left: 0em;"><span class="mrow" id="MathJax-Span-191"><span class="mi" id="MathJax-Span-192" style="font-family: MathJax_Math-italic;">n</span><span class="mo" id="MathJax-Span-193" style="font-family: MathJax_Main; padding-left: 0.279em;">=</span><span class="mn" id="MathJax-Span-194" style="font-family: MathJax_Main; padding-left: 0.279em;">3</span></span><span style="display: inline-block; width: 0px; height: 2.414em;"></span></span></span><span style="display: inline-block; overflow: hidden; vertical-align: -0.079em; border-left-width: 0px; border-left-style: solid; width: 0px; height: 1.004em;"></span></span></nobr><span class="MJX_Assistive_MathML" role="presentation"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>n</mi><mo>=</mo><mn>3</mn></math></span></span><script type="math/tex" id="MathJax-Element-13">n=3</script>. For simplicity, assume <span class="MathJax_Preview" style="color: inherit; display: none;"></span><span class="MathJax" id="MathJax-Element-14-Frame" tabindex="0" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mo fence="false" stretchy="false">{</mo><mi>f</mi><mo>=</mo><mn>0</mn><mo fence="false" stretchy="false">}</mo></math>" role="presentation" style="position: relative;"><nobr aria-hidden="true"><span class="math" id="MathJax-Span-195" style="width: 4.273em; display: inline-block;"><span style="display: inline-block; position: relative; width: 3.516em; height: 0px; font-size: 121%;"><span style="position: absolute; clip: rect(1.45em, 1003.447em, 2.896em, -999.997em); top: -2.407em; left: 0em;"><span class="mrow" id="MathJax-Span-196"><span class="mo" id="MathJax-Span-197" style="font-family: MathJax_Main;">{</span><span class="mi" id="MathJax-Span-198" style="font-family: MathJax_Math-italic;">f<span style="display: inline-block; overflow: hidden; height: 1px; width: 0.072em;"></span></span><span class="mo" id="MathJax-Span-199" style="font-family: MathJax_Main; padding-left: 0.279em;">=</span><span class="mn" id="MathJax-Span-200" style="font-family: MathJax_Main; padding-left: 0.279em;">0</span><span class="mo" id="MathJax-Span-201" style="font-family: MathJax_Main;">}</span></span><span style="display: inline-block; width: 0px; height: 2.414em;"></span></span></span><span style="display: inline-block; overflow: hidden; vertical-align: -0.413em; border-left-width: 0px; border-left-style: solid; width: 0px; height: 1.421em;"></span></span></nobr><span class="MJX_Assistive_MathML" role="presentation"><math xmlns="http://www.w3.org/1998/Math/MathML"><mo fence="false" stretchy="false">{</mo><...See full post