CREATE TABLE table_31699 ("Week" FLOAT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Attendance" FLOAT)

Tell me the sum of attendane for a result of w 12-3 and week more than 12
SELECT SUM("Attendance") FROM table_31699 WHERE "Result" = 'w 12-3' AND "Week" > '12'
SELECT SUM("Attendance") FROM "table_31699" WHERE "Result" = 'w 12-3' AND "Week" > '12'