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5^-2+(5^-1)/(5^-4) = 0
(5^-1)/(5^-4)+1/25 = 0
(1/5)/(5^-4)+1/25 = 0
1/5/(5^-4)+1/25 = 0
1/5/1/625+1/25 = 0
1/25+125 = 0
3126/25 = 0
L <> R
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