TORONTO (Reuters) - Canada's main stock index rose for the fourth straight day on Tuesday, led by the financial and energy groups as oil gained, while shares of BlackBerry Ltd climbed after the company reported an adjusted profit that beat expectations. The Toronto Stock Exchange's S&P/TSX composite index was up 21.98 points, or 0.14 percent, at 15,291.83, shortly after the open. (Reporting by Fergal Smith)



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