Hi. With your solutions I have been able to solve the problem (thank you
very much), but in each individual appears something like this:

| ECJ
| An evolutionary computation system (version 16)
| By Sean Luke
| Contributors: L. Panait, G. Balan, S. Paus, Z. Skolicki, R. Kicinger,
|               J. Harrison, J. Bassett, R. Hubley, A. Desai, and A. Chircop
| URL: http://cs.gmu.edu/~eclab/projects/ecj/
| Mail: [log in to unmask]
|       (better: join ECJ-INTEREST at URL above)
| Date: March 20 2007
| Current Java: 1.6.0_03 / Java HotSpot(TM) Client VM-1.6.0_03-b05
| Required Minimum Java: 1.3

What parameter erases the message? Thank you again.