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

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 */
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);
        ABC153_b solver = new ABC153_b();
        solver.solve(1, in, out);
        out.close();
    }

    static class ABC153_b {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int H = in.nextInt();
            int N = in.nextInt();
            int arr[] = new int[N];

            for (int i = 0; i < N; i++) {
                arr[i] = in.nextInt();
            }
            Arrays.sort(arr);
            for (int j = 0; j < N; j++) {
                H -= arr[j];
                if (H <= 0) {
                    out.println("Yes");
                    return;
                }
            }
            out.println("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.Arrays; Arrays java.util 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);
        ABC153_b solver = new ABC153_b();
        solver.solve(1, in, out);
        out.close();
    }

    static class ABC153_b {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int H = in.nextInt();
            int N = in.nextInt();
            int arr[] = new int[N];

            for (int i = 0; i < N; i++) {
                arr[i] = in.nextInt();
            }
            Arrays.sort(arr);
            for (int j = 0; j < N; j++) {
                H -= arr[j];
                if (H <= 0) {
                    out.println("Yes");
                    return;
                }
            }
            out.println("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);
        ABC153_b solver = new ABC153_b();
        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);
        ABC153_b solver = new ABC153_b();
        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) ABC153_b solver = new ABC153_b(); solver new ABC153_b() solver.solve(1, in, out) solver.solve solver 1 in out out.close() out.close out String[] args args static class ABC153_b {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int H = in.nextInt();
            int N = in.nextInt();
            int arr[] = new int[N];

            for (int i = 0; i < N; i++) {
                arr[i] = in.nextInt();
            }
            Arrays.sort(arr);
            for (int j = 0; j < N; j++) {
                H -= arr[j];
                if (H <= 0) {
                    out.println("Yes");
                    return;
                }
            }
            out.println("No");
        }

    } ABC153_b public void solve(int testNumber, Scanner in, PrintWriter out) {
            int H = in.nextInt();
            int N = in.nextInt();
            int arr[] = new int[N];

            for (int i = 0; i < N; i++) {
                arr[i] = in.nextInt();
            }
            Arrays.sort(arr);
            for (int j = 0; j < N; j++) {
                H -= arr[j];
                if (H <= 0) {
                    out.println("Yes");
                    return;
                }
            }
            out.println("No");
        } solve {
            int H = in.nextInt();
            int N = in.nextInt();
            int arr[] = new int[N];

            for (int i = 0; i < N; i++) {
                arr[i] = in.nextInt();
            }
            Arrays.sort(arr);
            for (int j = 0; j < N; j++) {
                H -= arr[j];
                if (H <= 0) {
                    out.println("Yes");
                    return;
                }
            }
            out.println("No");
        } int H = in.nextInt(); H in.nextInt() in.nextInt in int N = in.nextInt(); N in.nextInt() in.nextInt in int arr[] = new int[N]; arr new int[N] N for (int i = 0; i < N; i++) {
                arr[i] = in.nextInt();
            } int i = 0; int i = 0; i 0 i < N i N i++ i++ i {
                arr[i] = in.nextInt();
            } {
                arr[i] = in.nextInt();
            } arr[i] = in.nextInt() arr[i] arr i in.nextInt() in.nextInt in Arrays.sort(arr) Arrays.sort Arrays arr for (int j = 0; j < N; j++) {
                H -= arr[j];
                if (H <= 0) {
                    out.println("Yes");
                    return;
                }
            } int j = 0; int j = 0; j 0 j < N j N j++ j++ j {
                H -= arr[j];
                if (H <= 0) {
                    out.println("Yes");
                    return;
                }
            } {
                H -= arr[j];
                if (H <= 0) {
                    out.println("Yes");
                    return;
                }
            } H -= arr[j] H arr[j] arr j if (H <= 0) {
                    out.println("Yes");
                    return;
                } H <= 0 H 0 {
                    out.println("Yes");
                    return;
                } out.println("Yes") out.println out "Yes" return; out.println("No") out.println out "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);
        ABC153_b solver = new ABC153_b();
        solver.solve(1, in, out);
        out.close();
    }

    static class ABC153_b {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int H = in.nextInt();
            int N = in.nextInt();
            int arr[] = new int[N];

            for (int i = 0; i < N; i++) {
                arr[i] = in.nextInt();
            }
            Arrays.sort(arr);
            for (int j = 0; j < N; j++) {
                H -= arr[j];
                if (H <= 0) {
                    out.println("Yes");
                    return;
                }
            }
            out.println("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);
        ABC153_b solver = new ABC153_b();
        solver.solve(1, in, out);
        out.close();
    }

    static class ABC153_b {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int H = in.nextInt();
            int N = in.nextInt();
            int arr[] = new int[N];

            for (int i = 0; i < N; i++) {
                arr[i] = in.nextInt();
            }
            Arrays.sort(arr);
            for (int j = 0; j < N; j++) {
                H -= arr[j];
                if (H <= 0) {
                    out.println("Yes");
                    return;
                }
            }
            out.println("No");
        }

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

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 */
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);
        ABC153_b solver = new ABC153_b();
        solver.solve(1, in, out);
        out.close();
    }

    static class ABC153_b {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int H = in.nextInt();
            int N = in.nextInt();
            int arr[] = new int[N];

            for (int i = 0; i < N; i++) {
                arr[i] = in.nextInt();
            }
            Arrays.sort(arr);
            for (int j = 0; j < N; j++) {
                H -= arr[j];
                if (H <= 0) {
                    out.println("Yes");
                    return;
                }
            }
            out.println("No");
        }

    }
}

