TORONTO (Reuters) - Canada's main stock index opened higher on Monday, lifted by gains in shares of gold producers and a jump in shares of BlackBerry after the smartphone maker said it was exploring strategic alternatives. The Toronto Stock Exchange's S&P/TSX composite index was up 12.69 points, or 0.10 percent, at 12,555.09 shortly after the open. (Reporting by John Tilak; Editing by James Dalgleish)



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