You can use the following calculator to figure out what food to bring to the LRB Summer Picnic on Friday, August 18, 2017 at Woodland Park in Seattle. The calculator generates a result based on the rules that where discussed on LRB #233 (footnote).

Slight liberties were taken with calculating the result for guys; as, there is a slim chance that subtracting three from the sum leads to zero. In such cases, the result will come back with "A".