module my_lut (
    input  wire [3:0] i,
    output wire       o
);

  LUT4 #(
      .INIT(16'hAAAA)
  ) my_lut (
      .I0(i[0]),
      .I1(i[1]),
      .I2(i[2]),
      .I3(1'bx),
      .O (o)
  );

endmodule