But when i input other wallet like with the next letter priv key 1184cd2cdd640ca42cfc3a091c51d549b2f016d454b2774019c2b2d2e08529fe ,it doesn't find anything for days.
You got it wrong! You have to add the public address to the "riches.txt" file not the private key. If you have the private key then why do you need this tool in first place!
Anyway, you are wasting your time and resources as it's almost impossible to find a valid pk for a loaded address.
Changing a single character doesn't make it any easier. Public addresses are generated from private keys through one-way hash functions and even changing a single bit in the input (private key) will result in a completely different output (publik key).