Wow, that's a lot of furry bundles of joy. That definitely must have been a very exhausting time for you.
I remember one of my students telling me about his two Dalmatian bitches giving birth at the same time. Twelve puppies each. Twenty-four altogether.
In his case, the bitches didn't have enough milk to feed all the puppies fully so he had to supplement their food with bottle feeds. I asked him how he managed to differentiate between all twenty-four Dalmatian puppies. Just imagine all the dots!
He told me that he tied a ribbon to every puppy. In the morning, he would bottle-feed them one by one. When the puppy was full, he removed the ribbon. So he knew which ones were not fed yet. Then in the evening, when he fed them again, he put back the ribbon. so he would know which ones had been fed.