Aiming to use interactive option for rebase (.git) I am not getting success after the final statement $ git rebase -i HEAD~3 #Help

interactiveRebase.git

//start

$ git status

$ git commit -m "aaa"

$ git commit -m "bbb"

$ git commit -m "ccc"

$ git commit -m "ddd"

#Commit process done

$ git branch

#one branch master was available

$ git log --oneline

#Master branch log

$ git checkout -b unicorns

# So, i created a new unicorns branch

$ git rebase master

$ git checkout -b unicorns

$ git rebase master

$ git checkout -b unicorns

$ git rebase master

$ git checkout -b unicorns

$ git rebase master

$ git checkout -b unicorns

$ git rebase master

$ git checkout -b unicorns

$ git rebase master

$ git rebase -i HEAD~3 //Final line

# Not getting success

# Error message: You incorrectly specified which commits to edit. You wanted to specify the last four commits starting with HEAD.