When valora roucek is the contestant how many heights in centimeters are there?
CREATE TABLE table_18626383_2 (
    height__cm_ VARCHAR,
    contestant VARCHAR
)
SELECT COUNT(height__cm_) FROM table_18626383_2 WHERE contestant = "Valora Roucek"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: When valora roucek is the contestant how many heights in centimeters are there? ### Input: CREATE TABLE table_18626383_2 (
    height__cm_ VARCHAR,
    contestant VARCHAR
) ### Response: SELECT COUNT(height__cm_) FROM table_18626383_2 WHERE contestant = "Valora Roucek"