import kotlin.math.*
import java.util.*
import java.io.*

fun main() {
    val (d,t,s) = readLine()!!.split(" ").map { it.toLong() }
    val time:Long = d/s
    val rest:Long = d%s
    if(time < t){
        println("Yes")
    }
    else if(time == t && rest == 0L)
    {
        println("Yes")
    }
    else{
        println("No")
    }
}