Getting followers names


my site needs to keep track of followers of certain users
if i want to get the names of all the followers of specific user lets say this user have 1000 follower
i will be able to get the follower ids by
1000 id

then to get the username of each id i will have to run
for each id of those 1000 id but the rate limit of 350 makes this impossible

any solution , what i am doing wronge ?


its ok i found my answer i can ask for lookup of multiple users up to 100 saperated by commas