1 #include<iostream>
 2 #include<cstdio>
 3 
 4 using namespace std;
 5 
 6 int v,n,a[31],f[200001];
 7 
 8 int main() {
 9     scanf("%d%d",&v,&n);
10     for(int i = 1;i <= n; i++)
11         scanf("%d",&a[i]);
12     for(int i = 1;i <= n; i++)
13         for(int j = v;j >= a[i]; j--)
14             f[j] = max(f[j],f[j-a[i]] + a[i]);
15     printf("%d",v - f[v]);
16     return 0;
17 }