Thank you very much! Performanse test:

My noob script ;):
1558391 function calls in 10.158 seconds

Mathias Ettinger:
2504 function calls (2467 primitive calls) in 10.039 seconds

Georgy:
14267 function calls (14130 primitive calls) in 10.570 seconds

Thank you very much! Performanse test:

My noob script ;):
1558391 function calls in 10.158 seconds

Mathias Ettinger:
2504 function calls (2467 primitive calls) in 10.039 seconds

Georgy:
14267 function calls (14130 primitive calls) in 10.570 seconds