reversed: 6 5 4 3 2 1
middle three reversed back: 6 3 4 5 2 1
length("Pustaka Ceria") = 13
largest set to 0: 0 3 4 5 2 1
largest of an empty range is null: true
chain: [Bumi Manusia] [Laskar Pelangi] [Cantik Itu Luka]
after freeAll, head is null: true
