Design and Copyright : Oleg Smol'yakov (2020).
AAAAAA|AAAAAA|A....A|A....A|AAA...|AAA... AAAAAA|......|......|A....A|A.....|AAA... A....A|......|......|.....A|......|...... A....A|A....A|...AAA|......|......|...... AAA...|AAA...|....A.|....A.|......|...... AAA...|AAA...|......|......|......|......
BBBBBB|BBBBBB|B....B|B....B|BBB...|BBB... BBBBBB|......|......|B....B|BB....|BBB... B....B|......|......|.....B|......|...... B....B|B....B|.....B|......|......|...... BBB...|B.B...|......|......|......|...... BBB...|BBB...|......|......|......|......