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

module cat;
	integer c;
	integer d;
	integer i;
	initial begin
		c = $fgetc(`STDIN);
		i = 0;
		d = 0;
		while (c != `EOF) begin
			i = 1;
			while( c !=  10)begin 
				d  += (c - 48) * i;
				i =  i * 2;
				c = $fgetc(`STDIN);
			end
			$write("%d", c);
			c = $fgetc(`STDIN);
		end
	end
endmodule