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7-4*8-((9/4)*(-4)^2)-4*8 = 0
7-((9/4)*(-4)^2)-4*8-32 = 0
7-(9/4*(-4)^2)-4*8-32 = 0
7-(9/4*4^2)-4*8-32 = 0
7-(9/4*16)-4*8-32 = 0
7-4*8-36-32 = 0
7-4*8-68 = 0
7-68-32 = 0
7-100 = 0
-93 = 0
L <> R
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