In the place of "Find the sum of all products whose...", I would say: "Find the number of all products whose..." ;-)
Why  instead of 0?
Since I have kludged a solution together, can I have a hint?
this solution works on my comupter
I see the first test command line is corrupted
:( :( :(
I've fixed that first line in the test suite. Try it again.
Tic Tac Toe FTW
Find state names that end with the letter A
Find common elements in matrix rows
Scoring for oriented dominoes
Add two numbers
Find the path through the cell
Decrypt the cypher using XOR encryption (for beginners)
Numbers spiral diagonals (Part 1)
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