//#pragma GCC optimize("03,unroll-loops")
#include <bits/stdc++.h>
using namespace std;
// Shortcuts for common operations
#define pb push_back
#define p push
#define ppb pop_back
#define f first
#define s second
#define all(x) (x).begin(), (x).end()
#define ll long long
//#define int ll
#define endl "\n"
#define sz(x) (int)x.size()
// Type definitions for convenience
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<vll> vvll;
typedef vector<bool> vb;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef vector<vi> vvi;
typedef vector<pii> vii;
// Debugging macros
#define debug(x) cerr << #x << " = " << (x) << '\n'
#define debug_vector(v) _debug_vector(#v, v)
template<typename T>
void _debug_vector(const string& name, const vector<T>& a) {
cerr << name << " = [ ";
for(const auto &x : a) cerr << x << ' ';
cerr << "]\n";
}
// I/O redirection for local testing
#define iofile(io) \
freopen((io + ".in").c_str(), "r", stdin); \
freopen((io + ".out").c_str(), "w", stdout);
// delta for floodfill
vi dx = {0, 1, 0, -1};
vi dy = {1, 0, -1, 0};
// extended deltas for floodfill
vi edx = {0, 1, 0, -1, 1, 1, -1, -1};
vi edy = {1, 0, -1, 0, 1, -1, 1, -1};
// Common outputs
void yes() { cout << "YES" << '\n'; }
void no() { cout << "NO" << '\n'; }
void fx() {
int n, m;
cin >> n >> m;
vi people(n), notes(m);
for(auto &i: people) cin >> i;
for(auto &i: notes) cin >> i;
vi dp(1 << m, -1), leftover(1 << m, -1);
dp[0] = 0;
leftover[0] = 0;
for(int mask = 1; mask < (1 << m); mask++){
for(int last = 0; last < m; last++){
int prev = mask ^ (1 << last);
if((mask & (1 << last)) == 0) continue;
if(dp[prev] == -1) continue;
int rem = leftover[prev] + notes[last];
if(rem < people[dp[prev]]){
dp[mask] = dp[prev];
leftover[mask] = rem;
}else if(rem == people[dp[prev]]){
dp[mask] = dp[prev] +1;
leftover[mask] = 0;
}
}
if(dp[mask] == n){
yes();
return;
}
}
no();
}
signed main() {
cin.tie(0)->sync_with_stdio(0);
// Uncomment the following lines for file I/O
// iofile(string("hello"));
// Uncomment the following lines for multiple test cases
// int t; cin >> t; while(t--) fx();
// Single test case
fx();
return 0;
}
