35 - 102 :52 + 23.780 - ( 4. 52 - 3 . 23 ) 49 - ( -54) - 23-452 - ( - 67 + 75 - 452 )--5+ ( -19 ) + 18 + 11-4 - 57-2015 + 145 + ( -145) + 15-80-[-130 - ( 12- 4)2] + 20150
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