import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		// 数値
		int n1 = sc.nextInt();
		long h = n1;

		int n2 = sc.nextInt();
		int n = n2;

		boolean flg = false;

		for (int i = 0; i < n; i++) {
			int n3 = sc.nextInt();
			h = h - n3;
			if (h <= 0) {
				flg = true;
				break;
			}
		}

		if (flg) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	}
} import java.util.Scanner; Scanner java.util public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		// 数値
		int n1 = sc.nextInt();
		long h = n1;

		int n2 = sc.nextInt();
		int n = n2;

		boolean flg = false;

		for (int i = 0; i < n; i++) {
			int n3 = sc.nextInt();
			h = h - n3;
			if (h <= 0) {
				flg = true;
				break;
			}
		}

		if (flg) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	}
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		// 数値
		int n1 = sc.nextInt();
		long h = n1;

		int n2 = sc.nextInt();
		int n = n2;

		boolean flg = false;

		for (int i = 0; i < n; i++) {
			int n3 = sc.nextInt();
			h = h - n3;
			if (h <= 0) {
				flg = true;
				break;
			}
		}

		if (flg) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	} main {
		Scanner sc = new Scanner(System.in);
		// 数値
		int n1 = sc.nextInt();
		long h = n1;

		int n2 = sc.nextInt();
		int n = n2;

		boolean flg = false;

		for (int i = 0; i < n; i++) {
			int n3 = sc.nextInt();
			h = h - n3;
			if (h <= 0) {
				flg = true;
				break;
			}
		}

		if (flg) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n1 = sc.nextInt(); n1 sc.nextInt() sc.nextInt sc long h = n1; h n1 int n2 = sc.nextInt(); n2 sc.nextInt() sc.nextInt sc int n = n2; n n2 boolean flg = false; flg false for (int i = 0; i < n; i++) {
			int n3 = sc.nextInt();
			h = h - n3;
			if (h <= 0) {
				flg = true;
				break;
			}
		} int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
			int n3 = sc.nextInt();
			h = h - n3;
			if (h <= 0) {
				flg = true;
				break;
			}
		} {
			int n3 = sc.nextInt();
			h = h - n3;
			if (h <= 0) {
				flg = true;
				break;
			}
		} int n3 = sc.nextInt(); n3 sc.nextInt() sc.nextInt sc h = h - n3 h h - n3 h n3 if (h <= 0) {
				flg = true;
				break;
			} h <= 0 h 0 {
				flg = true;
				break;
			} flg = true flg true break; if (flg) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		} flg {
			System.out.println("Yes");
		} System.out.println("Yes") System.out.println System.out System System.out "Yes" {
			System.out.println("No");
		} System.out.println("No") System.out.println System.out System System.out "No" String[] args args public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		// 数値
		int n1 = sc.nextInt();
		long h = n1;

		int n2 = sc.nextInt();
		int n = n2;

		boolean flg = false;

		for (int i = 0; i < n; i++) {
			int n3 = sc.nextInt();
			h = h - n3;
			if (h <= 0) {
				flg = true;
				break;
			}
		}

		if (flg) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	}
} public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		// 数値
		int n1 = sc.nextInt();
		long h = n1;

		int n2 = sc.nextInt();
		int n = n2;

		boolean flg = false;

		for (int i = 0; i < n; i++) {
			int n3 = sc.nextInt();
			h = h - n3;
			if (h <= 0) {
				flg = true;
				break;
			}
		}

		if (flg) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	}
} Main
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		// 数値
		int n1 = sc.nextInt();
		long h = n1;

		int n2 = sc.nextInt();
		int n = n2;

		boolean flg = false;

		for (int i = 0; i < n; i++) {
			int n3 = sc.nextInt();
			h = h - n3;
			if (h <= 0) {
				flg = true;
				break;
			}
		}

		if (flg) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	}
}
