The file header consists of three lines. The first line begins with a
number equal to the number of input variables. On the second line is
the number of functions (that is, function sections), on the fourth
line is a *0-1* vector, represented as a string of *0*'s and
*1*'s, which specifies goal values for each of the functions. An
example is the following:

`5 # Number of Input Variables`
`6 # Number of Functions`
`110101 # Output values`

for a file with variables numbered 0-4 and 6 output functions.

John Franco 2011-09-15