Looking to hire someone to help me with modifying Bitcrack

currently, it calculates a value incrementally starting from the end

Required change:
I want the calculation to happen simultaneously at two places in the sequence
e.g.
00000000000000000000000000000000000000000000000000【000000】【00000001】
I want it to calculate incrementally the last 8 digits + at the same time start counting incrementally the 6 digits before the last 8 digits.

So basically two points of incremental additions in the sequence, independent of each other.  Not sure if it's possible or not.