Hi could you please help me with GRAP in Indd?

I have numbers in superscript and after this number I have space, than the text follows. I need to remove the space in between the number (in superscript) and the text. I am able to find it, but do not know what to put on the change field.

1. option – In GREP I simply find super script – the problem is, the space is not in super script
2. option – In GREP I put in find field d+ . There is space after the +, that you do not see on the pic. In this option, the problem is, it will search for all numbers, not only in superscript. (The space after the number is not in superscript).

Could you please help me what to put to the GRAP change field? I don't know how to use the exact result of search, but delete the space!

Example: 23 Hallo to 23Hallo. (23 is in superscript)

Thank you very much,
Sincerly,

Jarda.