Finding the result of a complex mathematical expression

Calculating 856+(19-3-(6+(5-3)-(2+1)+(5-3)))

856 + (19 - 3 - (6 + (5 - 3) - (2 + 1) + (5 - 3) ) )

= 856 + (16 - (6 + 2 - 3))

= 856 + (16 - 5)

= 856 + 11

= 867

What is the result of the mathematical expression 856+(19-3-(6+(5-3)-(2+1)+(5-3)))​? The result of the mathematical expression 856+(19-3-(6+(5-3)-(2+1)+(5-3)))​ is 867.
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