Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_87 (year INTEGER, score VARCHAR, champion VARCHAR)
### Question:
When did Kim Thompson win with 278 score?
### Answer:
SELECT SUM(year) FROM table_name_87 WHERE score = "278" AND champion = "kim thompson"