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_99 (country VARCHAR)
### Question:
What is the sum of participants in 2013 for Russia when there were 5 in 2010 and less than 4 in 2012?
### Answer:
SELECT SUM(2013) FROM table_name_99 WHERE 2010 = 5 AND country = "russia" AND 2012 < 4