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 JavaScript (node.js v5.12) (judge verdict: Accepted)

function main(input) {
    var line = input.split(/\r?\n/g);
    var arr = line[0].split(" ");
    const H = arr[0], N = arr[1];
    var A = line[1].split(" ");
    var accum = 0;
    for (var i = 0; i < A.length; i++)
        accum += parseInt(A[i]);
    console.log(1 < Math.ceil(H / accum) ? "No" : "Yes");
}
main(require('fs').readFileSync('/dev/stdin', 'utf8'));