Dealing with primes

Let \(P\), \(Q\) and \(R\) be primes with \(Q\) not equal to \(R\) such that \((4 +PQ)\) and \((4 +PR)\) are perfect squares. If there is(are) \(n\) possible pair(s) of solutions then there are \(n\) possible sum(s) of the pairwise primes. Find \(n+\) the possible \(n\) sum(s) of pairwise primes \(P\), \(Q\) and \(R\). Consider \((P, Q,R)\) and \((P, R, Q)\) as one pair.

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