P18611 [AtCoder] Raccoon is fighting with a monster.
普及-
题目描述

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-----
10 3
4 5 6

-----Sample Output-----
Yes

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

输入格式

见题面

输出格式

见题面

样例输入
10 3 4 5 6
样例输出
Yes