How to Convert a 64 Digit Count to a 16 Digit Number

"i thought i firs terewouldbe like another contract the inter with. So try to find any larbalab's address that had deployed a secret contract, and then trying to find a way to get from those bers to that address." "I was very thrown off by being a decimal because all these things are like strings of hecks,. And there just weren't enough numbers there if you convert it from decimal to hex," she says. 'The thing we were missing is that sometimes digits are hek'