(20 13? As shown in the figure, there is a turntable that can rotate freely, and it is divided into three sectors on average, which are marked with 1, 2,3, Xiao Wang and Xiao Li respectively.
(1) is as follows:
1 2 3 1 ( 1, 1) (2, 1) (3, 1) 2 ( 1,2) (2,2) (3,2)
Then p is the equation solution = 29.