bash loop with the variable name inside file name

Question

I am trying to run a loop where the variable condition is inside the file name, and not at the end. I'm wondering what the syntax is? Here is the code I tried to run:

for (( c = 479; c <= 480; c++ ))
do
fastqc --thread 32 SRR9049$c$_pass.fastq
done

Where two example names would be SRR9049479_pass.fastq and SRR9049480_pass.fastq

This gives the output

Skipping 'SRR9049479.fastq' which didn't exist, or couldn't be read
Skipping 'SRR9049480.fastq' which didn't exist, or couldn't be read

How do I change SRR9049$c$_pass.fastq so that it can read the ending of the file? Thank you!