garden gardens horticulture invasive japanese knotweed pests problem problems species weed 3D abstract blue color path presentation red renderedn white shortest add adding-machine addition appearance bulky buttons calculate calculating calculations calculators clear Clearance computers computing digits handle heavy input large limitations limited machine numbers numerals office office-equipment output predating press pressing problem-solving slow subtract subtraction technology happy face happy people laugh no problem smile anguish cry fear feeling opression sad sadness tear tears goals link missing piece play puzzle riddle solution solving toy
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