User input like: intpairs_2to10, complement=10, nb_variant=decimal1
should lead to look for pairs in 2 to 100 that match suits_for_deci2 and complement to 100, and divide them both by 10.
User input like: intpairs_2to100, complement=100, nb_variant=decimal1
should lead to look for pairs in 2 to 1000 that match suits_for_deci2 and complement to 1000 (yet to add), and divide them both by 10.
User input like: intpairs_2to10, complement=10, nb_variant=decimal2
should lead to look for pairs in 2 to 1000 that match complement to 1000 (yet to add), and divide them both by 100.
Maybe plan to especially find quarters (like 5.75 + 4.25).
User input like: intpairs_2to10, complement=100, nb_variant=decimal2
-> really useful?