
Implement in Verilog the following circuit: A two-input XNOR (connected
to 'in1' and 'in2) has an output connected to the input of a two-input
XOR. The second input of the XOR is 'in3.' The output of the XOR is
'out'.

module TopModule (
  input in1,
  input in2,
  input in3,
  output logic out
);

