Fundamental group of this subset of $\mathbb{C}^2$

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How to compute the fundamental group of the following topological space?

$$\{(z_1,z_2)\in\mathbb{C}^2\ |\ z_1\neq0,\ z_2\neq0,\ z_1\neq z_2\}$$

I am having no idea..

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It is the pure braid group $PB_3$. Because this space is homotopy to the configuration space $F_3(\mathbb{C})$. check this wikipedia. https://en.wikipedia.org/wiki/Configuration_space_(mathematics)