ALBERT FROM TAIWAN As below it is a math puzzle: A father ,who was a mathematician, "send" some amount of dollars to his son (who also studied math abroad),The son emailed to his father and said the amount you "send" is not enough ,please mailed "more" and then added them together make "money" and this is the amount I really want rule :"send" is a four digits number "more" also a four digits number "money" a five digits number each letter with same alphabet must have the same number each letter with different alphabet must have different number question: Please find the precise amount of "money" the son really wants