#include<bits/stdc++.h>
using namespace std;
int s[200];
int dp[55][32768];
int main(){
	int n,maxv;scanf("%d%d",&maxv,&n);
	for(int i=1;i<=n;i++){
		scanf("%d",&s[i]);
		dp[i][0]=1;
	}
	int ans=0;
	for(int i=1;i<=n;i++){
		for(int j=1;j<=maxv;j++){
			dp[i][j]=dp[i-1][j];
			if(j>=s[i]) dp[i][j]=dp[i-1][j]|dp[i-1][j-s[i]];
		}
		ans=dp[i][maxv];
		if(ans){
			printf("YES");
			return 0;
		}
	}
	printf("NO");
    return 0;
}

/**************************************************************
	Problem: 1693
	User: liangshinan
	Language: C++
	Result: Wrong Answer
****************************************************************/