import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
	    Scanner stdIn = new Scanner(System.in);
	    int N = Math.abs(stdIn.nextInt());
	    int K = stdIn.nextInt();
	    int T = stdIn.nextInt();
	    
	    long maxDistance = (long) K * T;
	    if(maxDistance < N){
	        System.out.println("No");
	    }else{
	        System.out.println("Yes");
	    }
	}
}