How to replace text in Notepad++ so that each replacement ends with a unique character or set of characters?

Question

Regular Expressions

In a huge text file, there are many lines that contain a piece of text like this:

[$gameVariables.value(111)][72] = '日本語のテキスト'

You need to replace all such text with something like

[$gameVariables.value(111)][72] = 'New text'

But so that each replaced text is at least somehow different from the previous one. That is, to be unique. For example:

[$gameVariables.value(111)][72] = 'New Text 1'
[$gameVariables.value(111)][72] = 'New Text 2'
[$gameVariables.value(111)][72] = ' New text 3'

[$gameVariables.value(111)][72] = 'New text a'
[$gameVariables.value(111)][72] = 'New text b'
[$gameVariables.value(111)][72] = ' New text c'

[$gameVariables.value(111)][72] = 'New text +'
[$gameVariables.value(111)][72] = 'New text ++'
[$gameVariables.value(111)][72] = 'New text +++'

Digital values ​​+1, as I understand it, Notepad cannot count. But maybe it can be implemented in some other way? Or perhaps a completely different program should be used for this purpose?