`timescale 1ns/100ps
module int_literals ();

integer a;

initial begin
  $monitor ("@ %gns a = %h", $time, a);
  a = '0;
  #1 a = 'x;
  #1 a = '1;
  #1 a = 'z;
  #1 a = 'b0;
  #1 a = 'bx;
  #1 a = 'b1;
  #1 a = 'bz;
  #1 $finish;
end

endmodule