Perfectly balanced, as all thing should be

SELECT * FROM gallery2 WHERE topic_id="1627049" UNION SELECT * FROM gallery2 WHERE topic_id="159483" UNION SELECT * FROM gallery2 WHERE topic_id="319261" UNION SELECT * FROM gallery2 WHERE topic_id="853316" UNION SELECT * FROM gallery2 WHERE topic_id="786278" UNION SELECT * FROM gallery2 WHERE topic_id="707465" UNION SELECT * FROM gallery2 WHERE topic_id="960347" UNION SELECT * FROM gallery2 WHERE topic_id="1305517" UNION SELECT * FROM gallery2 WHERE topic_id="966184" UNION SELECT * FROM gallery2 WHERE topic_id="1693878" UNION SELECT * FROM gallery2 WHERE topic_id="54578" UNION SELECT * FROM gallery2 WHERE topic_id="1460987" UNION SELECT * FROM gallery2 WHERE topic_id="1137987" UNION SELECT * FROM gallery2 WHERE topic_id="313670" UNION SELECT * FROM gallery2 WHERE topic_id="1335799" UNION SELECT * FROM gallery2 WHERE topic_id="1787084"