  Specify the migration model as an {n x n} matrix
  Theta values are on the diagonal, migration rates are
  off-diagonal, spaces (" "), "{", "}", or newlines
  are allowed, but not necessary.

  Syntax:
      * = independent parameter
      0 = (zero) not estimated]
      c = (constant) not estimated, taken from start-parameter]
      s = symmetric migration rates (M=m/mu)
      S = symmetric migration rates (xNm)
      m = average of each label group [not c, or s]
      d = population split with no immigration
      D = population split with immigration

  NUMBER OF POPULATIONS = 2

  If the population number is different, type a "N" at the prompt!


  You must give 4 more values out of 4
===> N
  Give the number of populations
===> 3
  NEW NUMBER OF POPULATIONS = 3

  You must now give 9 more values out of 9
===> **0 *** 0**
