Chef and Brain Speed

In ChefLand, human brain speed is measured in bits per second (bps). Chef has a threshold limit of $X$ bits per second above which his calculations are prone to errors. If Chef is currently working at $Y$ bits per second, is he prone to errors? If Chef is prone to errors print `YES`, otherwise print `NO`. ### Input The only line of input contains two space separated integers $X$ and $Y$ — the th