Thanks for the effort, but I was looking only for public key generation part, and then I would have changed add/subtract/ values and just like that I could have a mobile version of key subtracter. On my phone I couldn't run your script, I will try on laptop to see what happens, I just hope all the functions such ad wif, base58, uncompressed pubs etc are for decoration in this script, I mean I can barely handle public keys. 😉

I just remembered there was a script posted on puzzle thread which used subtraction by a desired value, but it was sequential. Thanks and sorry to post here asking help from others @OP.