Three Points Circle

Nicola discovered a caliper inside a set of drafting tools he received as a gift. Seeing the caliper, he has decided to learn how to use it.

Through any three points that do not exist on the same line, there lies a unique circle. The points of this circle are represented in a string with the coordinates like so:

"(x1,y1),(x2,y2),(x3,y3)"

Where *x1,y1,x2,y2,x3,y3* are digits.

You should find the circle for three given points,...

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