Does genus uniquely determine a compact connected manifold?

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Given a Smooth compact and connected 2-manifold $M$ with genus $n$. Is $M$ unique? Up to diffeomorphism, clearly.

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$M$ you do not precise wether $M$ is oriented or not, $M$ is not unique.

For example the genus of the torus is $1$ and the genus of the projective plane is also $1$.

https://en.wikipedia.org/wiki/Genus_(mathematics)