Problem:
Score : 200 points

Problem Statement

Raccoon is fighting with a monster.

The health of the monster is H.

Raccoon can use N kinds of special moves. Using the i-th move decreases the monster's health by A_i.
There is no other way to decrease the monster's health.

Raccoon wins when the monster's health becomes 0 or below.

If Raccoon can win without using the same move twice or more, print Yes; otherwise, print No.

Constraints

1 \leq H \leq 10^9

1 \leq N \leq 10^5

1 \leq A_i \leq 10^4

All values in input are integers.

Input

Input is given from Standard Input in the following format:

H N
A_1 A_2 ... A_N

Output

If Raccoon can win without using the same move twice or more, print Yes; otherwise, print No.

Sample Input 1

10 3
4 5 6

Sample Output 1

Yes

The monster's health will become 0 or below after, for example, using the second and third moves.

Sample Input 2

20 3
4 5 6

Sample Output 2

No

Sample Input 3

210 5
31 41 59 26 53

Sample Output 3

Yes

Sample Input 4

211 5
31 41 59 26 53

Sample Output 4

No

Solution in C (GCC 5.4.1) (judge verdict: Accepted)

#include <stdio.h>
#include <math.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>

#define GYOU_MAX 256
#define rep(i, n) for(int i = 0; i < (int)(n); i++)
#define s_pri(str) printf("%s\n",str);
#define PRINT(str) printf(#str "\n")
#define v_pri(val) printf("%d\n",val);
#define FOR(i, m, n) for(int i = m; i < n; i++)
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#define pi acos(-1.0)
#define sca(x) scanf("%d",&x);

typedef long long int ll;

/*
puts("aa");
//*/

int cmp(const void *a, const void*b) {
	return *(int*)b - *(int*)a;
}
int main(void) {




		int H, N;
		sca(H);
		sca(N);

		int A[100000];
		int sum = 0;
		rep(i, N) {
			sca(A[i]);
			sum += A[i];
		}
		if (sum >= H) {
			s_pri("Yes");
		}
		else {
			s_pri("No");
		}



	return 0;
}