i have a profesional project that need some modifications

i have 2 groups of 6 or 4 digits numbers and i want the exe to search for pairs that are exact or inexact in "shape"

"shape" means they have the same curves

example

number 1677

direction between one digit to the next

1-6=up,6-5=down,5-5=equal

so the shape of 1655 is U-D-Q

SO EXACT NUMBERS (PAIRS)ARE 1655 WITH 4866 BECAUSE  THE SAME SHAPE