//https://onlinejudge.u-aizu.ac.jp/courses/lesson/1/ALDS1/4/ALDS1_4_C
package main
import(
    "fmt"
    "bufio"
    "os"
    "strconv"
    "strings"
    "math"
    )

var rdr=bufio.NewReaderSize(os.Stdin,100000000)
func readLine()string{
    l,_,_:=rdr.ReadLine()
    return string(l)
}
func inputSplit()[]string{
    return strings.Split(readLine()," ")
}
func readInts(n int)[]int{
    s:=inputSplit()
    res:=make([]int,0,100000000)
    for i:=0;i<n;i++{
        j,_:=strconv.Atoi(s[i])
        res=append(res,j)
    }
    return res
}
func main(){
    tmp:=readInts(3)
    n,k,t:=int(math.Abs(float64(tmp[0]))),tmp[1],tmp[2]
    if(k*t>=n){
        fmt.Println("Yes")
    }else{
        fmt.Println("No")
    }
}