For all such primes, it is not only the sum of two primes, but also the difference of two primes?

For all such primes, it is not only the sum of two primes, but also the difference of two primes?

Because 7-2 = 5, 3 + 2 = 5, and 2, 3, 5 and 7 are prime numbers, which is in line with the meaning of the question; so this prime number is 5