QA output created by 225 --- before delete ---- 0000000 abab abab abab abab abab abab abab abab * 4000000 0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd * 4000000 --- after delete ---- 0000000 abab abab abab abab abab abab abab abab * 4000000 0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd * 4000000