CREATE TABLE table_53432 ("Name" CLOB, "Hanzi" CLOB, "Hanyu Pinyin" CLOB, "Uyghur  (  UEY  ) " CLOB, "Uyghur Latin  (  ULY  ) " CLOB, "Population  ( 2010 Census ) " CLOB, "Area  ( km\\u00b2 ) " CLOB, "Density  ( /km\\u00b2 ) " CLOB)

What is the Hanyu Pinyin with an area of 400?
SELECT "Hanyu Pinyin" FROM table_53432 WHERE "Area (km\u00b2)" = '400'
SELECT "Hanyu Pinyin" FROM "table_53432" WHERE "Area (km\u00b2)" = '400'