CREATE TABLE table_203_834 (id NUMBER, "rank" NUMBER, "census subdivision" CLOB, "province" CLOB, "type" CLOB, "land area\ ( km2 ,  2011 ) " NUMBER, "population 2011" NUMBER, "population 2006" NUMBER, "population 2001" NUMBER, "population 1996" NUMBER, "change in % 2006-2011" NUMBER, "change in % 1996-2011" NUMBER)

what is the combined land area of toronto and hamilton ?
SELECT SUM("land area\n(km2, 2011)") FROM table_203_834 WHERE "census subdivision" IN ('toronto', 'hamilton')
SELECT SUM("land area\n(km2, 2011)") FROM "table_203_834" WHERE "census subdivision" IN ('toronto', 'hamilton')