`timescale 1ns/1ps
module sn7427
  #(parameter tPLH = 0, tPHL = 0)
  (input [2:0]	A,
   input [2:0]	B,
   input [2:0]  C,
   output [2:0]	Y);

   assign #(tPLH, tPHL) Y = ~(A | B | C);
endmodule