`define EOF 32'hFFFF_FFFF
`define STDIN 32'h8000_0000

module cat;
	integer c,d;
	$write("%d", "\n");
	initial begin
		c = $fgetc(`STDIN);
		
		while (c != `EOF) begin
			d = c;
			// while(c != '\n) begin
				// c = $fgetc(`STDIN);	
				d = d + c;
			// end 

			$write("%c", d);
			
		end
	end
endmodule