iter first next next next next ---- iter seek-ge a next next next next ---- iter seek-ge b next next next ---- iter seek-ge c next next ---- iter seek-ge d next ---- iter seek-ge e ---- iter seek-ge b seek-ge c seek-ge d seek-ge e ---- iter last prev prev prev prev ---- iter seek-lt e prev prev prev prev ---- iter seek-lt d prev prev prev ---- iter seek-lt c prev prev ---- iter seek-lt b prev ---- iter seek-lt a ---- . iter seek-lt d seek-lt c seek-lt b seek-lt a ---- . iter globalSeqNum=1 first next next next next ---- iter globalSeqNum=10 first next next next next ---- iter globalSeqNum=0 seek-lt x ---- get b a f d c ---- 97 54 iter seek-ge aboard prev prev ---- . iter seek-ge calumnious next next next prev prev prev prev prev ---- iter seek-lt yourself next next next ---- . iter seek-lt yourself prev prev prev next next seek-ge calumnious prev prev prev first next next prev prev prev ---- . iter seek-ge m next next next ---- iter seek-lt m next next next ---- iter seek-ge a seek-ge b seek-ge c seek-ge d seek-ge e seek-ge f seek-ge g seek-ge h seek-ge i seek-ge j seek-ge k seek-ge l seek-ge m seek-ge n seek-ge o seek-ge p seek-ge q seek-ge r seek-ge s seek-ge t seek-ge u seek-ge v seek-ge w seek-ge x seek-ge y seek-ge z ---- . iter seek-lt a seek-lt b seek-lt c seek-lt d seek-lt e seek-lt f seek-lt g seek-lt h seek-lt i seek-lt j seek-lt k seek-lt l seek-lt m seek-lt n seek-lt o seek-lt p seek-lt q seek-lt r seek-lt s seek-lt t seek-lt u seek-lt v seek-lt w seek-lt x seek-lt y seek-lt z ---- .