1. Center for Advanced Studies, St. Petersburg State Polytechnical University 29, Polytekhnicheskaya, St. Petersburg 195251, Russia
2. Computer Science and CEWIT, SUNY Stony Brook 1500 Stony Brook Road, Stony Brook, NY 11794, USA
3. Lab Modeling of Evolution I. M. Sechenov Institute of Evolutionary Physiology and Biochemistry Russian Academy of Sciences, Pr. Torez 44, St. Petersburg 194223, Russia