# 2 last digits

A 2-digit integer $$\overline{ab}$$ is called "beautiful" if:

• $$\overline{ab}$$ is a prime.
• There is a square has 2 last digits is $$\overline{ab}$$

Find the sum of possible values of $$\overline{ab}$$.

Note: $$a$$ can be equal $$0$$.

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