import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Scanner;

/**
 * Built using CHelper plug-in Actual solution is at the top
 *
 * @author Silviase
 */
public class Main {

  public static void main(String[] args) {
    InputStream inputStream = System.in;
    OutputStream outputStream = System.out;
    Scanner in = new Scanner(inputStream);
    PrintWriter out = new PrintWriter(outputStream);
    BCommonRaccoonVsMonster solver = new BCommonRaccoonVsMonster();
    solver.solve(1, in, out);
    out.close();
  }

  static class BCommonRaccoonVsMonster {

    public void solve(int testNumber, Scanner in, PrintWriter out) {
      int h = in.nextInt();
      int n = in.nextInt();
      long x = 0;
      for (int i = 0; i < n; i++) {
        x += in.nextLong();
      }
      out.println(x >= h ? "Yes" : "No");
    }

  }
}
 import java.io.OutputStream; OutputStream java.io import java.io.IOException; IOException java.io import java.io.InputStream; InputStream java.io import java.io.PrintWriter; PrintWriter java.io import java.util.Scanner; Scanner java.util public class Main {

  public static void main(String[] args) {
    InputStream inputStream = System.in;
    OutputStream outputStream = System.out;
    Scanner in = new Scanner(inputStream);
    PrintWriter out = new PrintWriter(outputStream);
    BCommonRaccoonVsMonster solver = new BCommonRaccoonVsMonster();
    solver.solve(1, in, out);
    out.close();
  }

  static class BCommonRaccoonVsMonster {

    public void solve(int testNumber, Scanner in, PrintWriter out) {
      int h = in.nextInt();
      int n = in.nextInt();
      long x = 0;
      for (int i = 0; i < n; i++) {
        x += in.nextLong();
      }
      out.println(x >= h ? "Yes" : "No");
    }

  }
} Main public static void main(String[] args) {
    InputStream inputStream = System.in;
    OutputStream outputStream = System.out;
    Scanner in = new Scanner(inputStream);
    PrintWriter out = new PrintWriter(outputStream);
    BCommonRaccoonVsMonster solver = new BCommonRaccoonVsMonster();
    solver.solve(1, in, out);
    out.close();
  } main {
    InputStream inputStream = System.in;
    OutputStream outputStream = System.out;
    Scanner in = new Scanner(inputStream);
    PrintWriter out = new PrintWriter(outputStream);
    BCommonRaccoonVsMonster solver = new BCommonRaccoonVsMonster();
    solver.solve(1, in, out);
    out.close();
  } InputStream inputStream = System.in; inputStream System.in System System.in OutputStream outputStream = System.out; outputStream System.out System System.out Scanner in = new Scanner(inputStream); in new Scanner(inputStream) PrintWriter out = new PrintWriter(outputStream); out new PrintWriter(outputStream) BCommonRaccoonVsMonster solver = new BCommonRaccoonVsMonster(); solver new BCommonRaccoonVsMonster() solver.solve(1, in, out) solver.solve solver 1 in out out.close() out.close out String[] args args static class BCommonRaccoonVsMonster {

    public void solve(int testNumber, Scanner in, PrintWriter out) {
      int h = in.nextInt();
      int n = in.nextInt();
      long x = 0;
      for (int i = 0; i < n; i++) {
        x += in.nextLong();
      }
      out.println(x >= h ? "Yes" : "No");
    }

  } BCommonRaccoonVsMonster public void solve(int testNumber, Scanner in, PrintWriter out) {
      int h = in.nextInt();
      int n = in.nextInt();
      long x = 0;
      for (int i = 0; i < n; i++) {
        x += in.nextLong();
      }
      out.println(x >= h ? "Yes" : "No");
    } solve {
      int h = in.nextInt();
      int n = in.nextInt();
      long x = 0;
      for (int i = 0; i < n; i++) {
        x += in.nextLong();
      }
      out.println(x >= h ? "Yes" : "No");
    } int h = in.nextInt(); h in.nextInt() in.nextInt in int n = in.nextInt(); n in.nextInt() in.nextInt in long x = 0; x 0 for (int i = 0; i < n; i++) {
        x += in.nextLong();
      } int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
        x += in.nextLong();
      } {
        x += in.nextLong();
      } x += in.nextLong() x in.nextLong() in.nextLong in out.println(x >= h ? "Yes" : "No") out.println out x >= h ? "Yes" : "No" x >= h x h "Yes" "No" int testNumber testNumber Scanner in in PrintWriter out out public class Main {

  public static void main(String[] args) {
    InputStream inputStream = System.in;
    OutputStream outputStream = System.out;
    Scanner in = new Scanner(inputStream);
    PrintWriter out = new PrintWriter(outputStream);
    BCommonRaccoonVsMonster solver = new BCommonRaccoonVsMonster();
    solver.solve(1, in, out);
    out.close();
  }

  static class BCommonRaccoonVsMonster {

    public void solve(int testNumber, Scanner in, PrintWriter out) {
      int h = in.nextInt();
      int n = in.nextInt();
      long x = 0;
      for (int i = 0; i < n; i++) {
        x += in.nextLong();
      }
      out.println(x >= h ? "Yes" : "No");
    }

  }
} public class Main {

  public static void main(String[] args) {
    InputStream inputStream = System.in;
    OutputStream outputStream = System.out;
    Scanner in = new Scanner(inputStream);
    PrintWriter out = new PrintWriter(outputStream);
    BCommonRaccoonVsMonster solver = new BCommonRaccoonVsMonster();
    solver.solve(1, in, out);
    out.close();
  }

  static class BCommonRaccoonVsMonster {

    public void solve(int testNumber, Scanner in, PrintWriter out) {
      int h = in.nextInt();
      int n = in.nextInt();
      long x = 0;
      for (int i = 0; i < n; i++) {
        x += in.nextLong();
      }
      out.println(x >= h ? "Yes" : "No");
    }

  }
} Main
import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Scanner;

/**
 * Built using CHelper plug-in Actual solution is at the top
 *
 * @author Silviase
 */
public class Main {

  public static void main(String[] args) {
    InputStream inputStream = System.in;
    OutputStream outputStream = System.out;
    Scanner in = new Scanner(inputStream);
    PrintWriter out = new PrintWriter(outputStream);
    BCommonRaccoonVsMonster solver = new BCommonRaccoonVsMonster();
    solver.solve(1, in, out);
    out.close();
  }

  static class BCommonRaccoonVsMonster {

    public void solve(int testNumber, Scanner in, PrintWriter out) {
      int h = in.nextInt();
      int n = in.nextInt();
      long x = 0;
      for (int i = 0; i < n; i++) {
        x += in.nextLong();
      }
      out.println(x >= h ? "Yes" : "No");
    }

  }
}

