Х<=820 samoe malenkoe 1, a samoe bolshoe 820
Х>=820 samoe malenkoe 820, a samoe bolshoe beskonechnostj, proverj kakoe u tebja uravnenie.
Х<=820 samoe malenkoe 1, a samoe bolshoe 820
Х>=820 samoe malenkoe 820, a samoe bolshoe beskonechnostj, proverj kakoe u tebja uravnenie.