1. In a cryptarithm, numbers are represented by replacing their digits by letters; a given letter consistently represents the same digit and different letters represent different digits. Leading zeroes are not permitted. Solve the following cryptarithm with the additional restriction that IDEA is even.
S A M S I D E A M A D E ___________ S E N S E
Source: J.A.H. Hunter
2. What if the restriction on IDEA is dropped?