CREATE TABLE table_80449 ("Race" TEXT, "Dist  ( f ) " FLOAT, "Course" TEXT, "Class" TEXT, "Prize  ( \\u00a3K ) " FLOAT, "Odds" TEXT, "Runners" FLOAT, "Placing" FLOAT, "Margin" TEXT, "Time" TEXT, "Jockey" TEXT, "Trainer" TEXT)

Name the runners for longchamp
SELECT "Runners" FROM table_80449 WHERE "Course" = 'longchamp'
SELECT "Runners" FROM "table_80449" WHERE "Course" = 'longchamp'