Renaming a Level Name that is a number

I have two levels with following names and numbers

Level Name  - Number

=====================

Roads       - 4

4           - 318

=====================

Main aim is to use keyin to rename Level 4 to Text, like this.

=====================

Roads       - 4

Text        - 318

=====================

 

When i keyin LEVEL SET NAME 4 TEXT, the level "Roads" with level number 4 is renamed to "TEXT". like this:

=====================

Text      - 4

4         - 318

=====================

I tried using quotes LEVEL SET NAME "4" TEXT, but does not work.

I cannot rename using level number 318 because this varies from file to file (I have bunch of files to process). Any suggestions how to rename levels that have 'numbers' as names?

Thanks in advance

- Mohammed Ansari