2 balls,3 bins unrestricted) labeled balls into labeled bins unlabeled balls into labeled bins ①② (① ② AB☒ A BC A BI C A BC ② ① 8 ① ② A A BC A B C Only of balls in each bin matters. ② 1 ② (① B A A B Hengfeng Wei (hfweixnju.edu.cn) 2-3 Counting March12,202015/342 balls, 3 bins (unrestricted) labeled balls into labeled bins unlabeled balls into labeled bins Only # of balls in each bin matters. Hengfeng Wei (hfwei@nju.edu.cn) 2-3 Counting March 12, 2020 15 / 34