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

module cat;
	integer c,i,d;
	initial begin
		c = $fgetc(`STDIN);
		while (c != `EOF) begin
			while (! ( c == 48 || c == 49 || c == `EOF)) begin 
				c = $fgetc(`STDIN);				
			end
			d = 0;
			i = 1;
			while ( c == 48 || c == 49)begin
				d = d + (c - 48) * i;
				i =  i * 2;
				c = $fgetc(`STDIN);
			end
		    $write("%d\n", d);
			i = 1;
			while(d > 0)begin 
				d = d - i;
				i = i + 1;
			end

			if ( d == 0 )begin
				// $write("%c\n", "0");
		    end else begin
		    	// $write("%c\n", "1");
		    end
		end
	end
endmodule