Variables student$1,$ student$2,$ student$3,$ and student$4$ are read from input. Create a set named unique$\_$names containing student$1,$ student$2,$ student$3,$ and student$4.$

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Ex: If the input is:

Cam

Rob

Noa

Rob

then the output is:

$[\text{'}$Cam$\text{'},$ 'Noa', 'Rob'$]$

Note: Because sets are unordered, the set is printed using the sorted$()$ function here for comparison.