Test suite needs abs( ).
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Find relatively common elements in matrix rows
Which values occur exactly three times?
Choose the best fitting dominoes
Cell Counting: How Many Draws?
What is the nth step in Conway's Life?
Factorions: Numbers that equal the sum of the factorials of their digits
Airline Ticket Mod7 Checksum
Find the first N zeros of the 666 function
Dudeney Numbers: Numbers which are the cube of their decimal sum
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