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 Go (1.6) (judge verdict: Runtime Error)

package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
	"strings"
)

var (
	H, N, sum int
	a         []int
	line      string
)

func main() {
	scanner := bufio.NewScanner(os.Stdin)
	scanner.Scan()
	line = scanner.Text()
	values := strings.Split(line, " ")
	H, _ = strconv.Atoi(values[0])
	N, _ = strconv.Atoi(values[1])
	a = make([]int, N)
	scanner.Scan()
	line = scanner.Text()
	values = strings.Split(line, " ")
	for i := 0; i < N; i++ {
		a[i], _ = strconv.Atoi(values[i])
	}
	for _, v := range a {
		sum += v
	}
	if H > sum {
		fmt.Println("No")
	} else {
		fmt.Println("Yes")
	}
}