# Inspired by Sanyog Ghosh

**Algebra**Level pending

\[ \large \displaystyle \left ( \sum_{n=1}^{ 10^{\lfloor \pi \rfloor} + 9^{\lceil e \rceil} } (-1)^{n+1} \times \lceil \sqrt [3]{n} \rceil^{2} \right ) - 7^{2} = \ ? \]

Notes:

\( \lfloor \alpha \rfloor\) is the floor function

\( \lceil \alpha \rceil\) is the ceiling function

\( e \) is Euler's number

\( \pi \) is pi