CREATE TABLE table_13449 ("Position" TEXT, "Gymnast" TEXT, "A Score" FLOAT, "B Score" FLOAT, "Total" FLOAT)

what is the average b score when the gymnast is k hei uchimura ( jpn )?
SELECT AVG("B Score") FROM table_13449 WHERE "Gymnast" = 'kōhei uchimura ( jpn )'
SELECT AVG("B Score") FROM "table_13449" WHERE "Gymnast" = 'kōhei uchimura ( jpn )'