CREATE TABLE table_name_63 (assists INTEGER, total_attempts VARCHAR(255), percentage VARCHAR(255), solo_blocks VARCHAR(255))
When the percentage is 0.34900000000000003 with more than 13 solo blocks and less than 4713 total attempts, what is the greatest assists?
    
SQL: SELECT MAX(assists) FROM table_name_63 WHERE percentage < 0.34900000000000003 AND solo_blocks > 13 AND total_attempts < 4713