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We can solve this puzzle directly using the [[

`SubstitutedExpression()`

]] solver from theenigma.pylibrary.This run file executes in 125ms.

Run:[ @repl.it ]However an equally short program will work using the [[

`SubstitutedSum()`

]] solver from theenigma.pylibrary.This program runs in 81ms.

Either way:

Solution:The multiplication sum is 3818931 × 3 = 11456793.There are no additional solutions, even if A is allowed to be greater than 5.

A short programme finds the requested digits for which letters stand.