Detailed Instructions: In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.
Problem:Passage: Žigić was born in Bačka Topola, in what was then SFR Yugoslavia. He began playing football as a youngster with AIK Bačka Topola, and scored 68 goals from 76 first-team matches over a three-year period in the third tier of Yugoslav football. Military service took him to Bar in 2001, where he was able to continue his goalscoring career with the local second-level club Mornar. A brief spell back in the third tier with Kolubara preceded his turning professional with First League side Red Star Belgrade in January 2003. He spent time on loan at third-tier Spartak Subotica before making his Red Star debut later that year. Despite suggestions that his height, of , made him better suited to sports other than football, Žigić ended the season as First League top scorer, domestic player of the year, league champion and scorer of the winning goal in the cup final. He won a second league–cup double in 2005–06, a second player of the year award, and finished his three-year Red Star career with 70 goals from 109 appearances in all competitions.
 Link Information: With 30 national championships, 24 national cups, 2 national supercups and one league cup between Serbian and Yugoslav competitions, Red Star was the most successful club in Yugoslavia  Question: How many championships have been won by the team Žigić turned professional with in 2003?
Solution:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Answer: 30