1create 10 2add 10 20 3add 11 21 4add 12 22 5add 14 45 6add 16 50 7add 17 51 8dump 9# Extent dump: 10# Num=3, Size=10, Cursor=0, Sorted=1 11# 10 -> 20 (3) 12# 14 -> 45 (1) 13# 16 -> 50 (2) 14add 18 52 15dump 16# Extent dump: 17# Num=3, Size=10, Cursor=0, Sorted=1 18# 10 -> 20 (3) 19# 14 -> 45 (1) 20# 16 -> 50 (3) 21lookup 10 22# Answer: 20 23lookup 11 24# Answer: 21 25lookup 12 26# Answer: 22 27lookup 13 28# Answer: 0 (not found) 29lookup 14 30# Answer: 45 31lookup 15 32# Answer: 0 (not found) 33lookup 16 34# Answer: 50 35lookup 1 36# Answer: 0 (not found) 37lookup 50 38# Answer: 0 (not found) 39add 19 100 40add 13 5 41lookup 18 42# Answer: 52 43lookup 19 44# Answer: 100 45lookup 20 46# Answer: 0 (not found) 47lookup 12 48# Answer: 22 49lookup 13 50# Answer: 5 51dump 52# Extent dump: 53# Num=5, Size=10, Cursor=0, Sorted=1 54# 10 -> 20 (3) 55# 13 -> 5 (1) 56# 14 -> 45 (1) 57# 16 -> 50 (3) 58# 19 -> 100 (1) 59iter_test 60# 10 -> 20 (3) 61# 13 -> 5 (1) 62# 14 -> 45 (1) 63# 16 -> 50 (3) 64# 19 -> 100 (1) 65