We had four cards numbered \(1\),\(2\),\(3\) and \(4\) respectively. Three of the four cards are placed into the boxes as shown in the equation below.

\(n\)=\(5\)+\(\boxed{}\)+\(\boxed{}\)-\(\boxed{}\)

Find the sum of the numbers possible for obtaining \(n\).

Source from PMWC.

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