#include<bits/stdc++.h> using namespace std; #define int long long #define ff first #define ss second #define pb insert const int N=25; int arr[N],brr[N]; bool vis[2000]; signed main(){ int n,m; cin>>n>>m; vis[0]=1; for(int i=1;i<=n;i++)cin>>arr[i]; for(int i=1;i<=m;i++){ int a; cin>>a; for(int j=0;j<=1000;j++){ if(vis[j]==1 and j+a<=1000){ vis[j+a]=1; } } } for(int i=1;i<=n;i++){ if(vis[arr[i]]==0){ cout<<"NO"<<endl; return 0; } } cout<<"YES"<<endl; }