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3*(1900/100)+6*(16/2)-40-1+2+85 = 0
3*19+6*(16/2)-40-1+2+85 = 0
6*(16/2)-40-1+2+57+85 = 0
6*8-40-1+2+57+85 = 0
2-40-1+48+57+85 = 0
2-40-1+85+105 = 0
2-1+65+85 = 0
2+64+85 = 0
66+85 = 0
151 = 0
L <> R
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