import java.util.Scanner

object Main {
	def main(args: Array[String]): Unit = {
		val scan = new Scanner(System.in)
		val a = scan.nextInt()
		val b = scan.nextInt()
		val c = scan.nextInt()
		
		if (a <= c && c <= b) {
			println("Yes")
		} else {
			println("No")
		}
	}
}
