π 3
π 2
π 1
π 1
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0
π 0