Definition: In this task, you're given a statement, and three sentences as choices. Your job is to determine which sentence clearly disagrees with the statement. Indicate your answer as '1', '2', or '3' corresponding to the choice number of the selected sentence.
Input: Statement: Six years later he besieged Vienna for 24 days (unsuccessfully) before going on to take most of Hungary. Choices:  1. Vienna was under siege for 24 days, but the siege was not successful. 2. Vienna had strong walls and a lasting supply of food to survive the siege. 3. He led a successful siege of Vienna six years later.

3