CREATE TABLE table_name_56 (bronze INTEGER, silver VARCHAR(255), sport VARCHAR(255), gold VARCHAR(255), games VARCHAR(255))
Tell me the lowest Bronze for gold of 3 in the winter for cross-country skiing and silver less than 0
    
SQL: SELECT MIN(bronze) FROM table_name_56 WHERE gold = 3 AND games = "winter" AND sport = "cross-country skiing" AND silver < 0