Authors:

• Joanna Ziach - school: XXXIII Copernicus Secondary School in Warsaw. Hobbies: rock music, playing guitar, social psychology, fractals, Arabic language and culture, canoeing, travelling. Plans: studying at the University of Warsaw – psychology and mathematics
• Tomasz Chajneta - like the rest of the team lives and goes to school in Warsaw (XXXIII Copernicus High  School).  My hobbies are:  mid distance running, teasing brother Michael, mom Grazyna and dad Jerzy, likes mathematics and girls.  Plans to study at SGH.
• Sławek Pawłowski - 17 year old student of high school (XIV LO im.Staszica) in Warsaw. Interests: reading, computers, bike riding. Plans: studying economy at SGH or astronomy at Warsaw University.