Underscript and Superscript icons

Hello, could we have icons for underscript and superscript texts?

These are from google docs

thanks in advance

Review the repository's existing icon set and SVG conventions first, then determine where the underscript and superscript icons belong. Create both icons to match the provided Google Docs reference and the project's visual style; the work is done when both are available alongside the existing icons.

Written by the indexing model from the issue text.