Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: The refurbishment of Bristol's Colston Hall will cost "millions" of pounds more than the £52.2m budgeted, according to the city's Mayor.

Colston Hall rebuild to go 'millions' over budget