2. The farming proverb 'counting the nines in winter' refers to dividing every nine days into a segment, starting from the Winter Solstice, and sequentially naming them the first nine, second nine, ..., ninth nine, with the Winter Solstice being the first day of the first nine. December 21, 2012, was the Winter Solstice, so New Year's Day 2013 is the $\qquad$th nine's $\qquad$th day.