CREATE TABLE table_68714 ("Rank" FLOAT, "Station" CLOB, "City" CLOB, "State" CLOB, "Boardings and deboardings" FLOAT)

At south station what was the total rank when boarding and deboardings were smaller than 1,360,162?
SELECT SUM("Rank") FROM table_68714 WHERE "Station" = 'south station' AND "Boardings and deboardings" < '1,360,162'
SELECT SUM("Rank") FROM "table_68714" WHERE "Boardings and deboardings" < '1,360,162' AND "Station" = 'south station'