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3*(1/2)^4-(2*(1/2)^3)+5*(1/2)^2-(4*(1/2))+1 = 0
1/16*3-(2*(1/2)^3)+5*(1/2)^2-(4*(1/2))+1 = 0
5*(1/2)^2-(2*(1/2)^3)-(4*(1/2))+3/16+1 = 0
5*(1/2)^2-(1/8*2)-(4*(1/2))+3/16+1 = 0
5*(1/2)^2-(4*(1/2))-1/4+3/16+1 = 0
5*(1/2)^2-(4*(1/2))-1/16+1 = 0
1/4*5-(4*(1/2))-1/16+1 = 0
1-(4*(1/2))-1/16+5/4 = 0
1-(4*(1/2))+19/16 = 0
1-(1/2*4)+19/16 = 0
1-2+19/16 = 0
1-13/16 = 0
3/16 = 0
L <> R
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