That looks something like this for a small grid where our snake is moving down. Notice that we delete and re-print 3 entire lines!
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Названа причина скорого подорожания китайских смартфонов«Кэчуанбань жибао»: Китайские смартфоны подорожают с марта
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Now, for each shortcut in this sequence, OsmAnd runs its highly optimized A* algorithm on the detailed map, but strictly limited to the small area of the cluster that shortcut belongs to.