Generating Fuchsian Groups

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Suppose $\Lambda$ is a finite (more than $2$ points) or countable discrete set in the unit disk $\mathbb{D}\subset\mathbb{C}$, how does one generate the Fuchsian group $\Gamma$ for which $\mathbb{D}/\Gamma\cong \mathbb{D}\backslash\Lambda$.

For finite sets, for example, is it simply a free product of cyclic groups generated by parabolic elements?