CREATE TABLE table_203_729 (id DECIMAL, "township" TEXT, "fips" DECIMAL, "population\ center" TEXT, "population" DECIMAL, "population\ density\ /km2  ( /sq mi ) " TEXT, "land area\ km2  ( sq mi ) " TEXT, "water area\ km2  ( sq mi ) " TEXT, "water %" TEXT, "geographic coordinates" TEXT)

how many more people live in clear creek township than columbia township in ellsworth county , kansas ?
SELECT (SELECT "population" FROM table_203_729 WHERE "township" = 'clear creek') - (SELECT "population" FROM table_203_729 WHERE "township" = 'columbia')
SELECT (SELECT "population" FROM "table_203_729" WHERE "township" = 'clear creek') - (SELECT "population" FROM "table_203_729" WHERE "township" = 'columbia')