#include <bits/stdc++.h>
using namespace std;
void __print(int x) {cerr << x;}
void __print(long x) {cerr << x;}
void __print(long long x) {cerr << x;}
void __print(unsigned x) {cerr << x;}
void __print(unsigned long x) {cerr << x;}
void __print(unsigned long long x) {cerr << x;}
void __print(float x) {cerr << x;}
void __print(double x) {cerr << x;}
void __print(long double x) {cerr << x;}
void __print(char x) {cerr << '\'' << x << '\'';}
void __print(const char *x) {cerr << '\"' << x << '\"';}
void __print(const string &x) {cerr << '\"' << x << '\"';}
void __print(bool x) {cerr << (x ? "0" : "1");}
template<typename T, typename V>
void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ", "; __print(x.second); cerr << '}';}
template<typename T>
void __print(const T &x) {int f = 0; cerr << '{'; for (auto i: x) cerr << (f++ ? "\n" : ""), __print(i); cerr << "}";}
void _print() {cerr << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}
#ifdef DEBUG
#define dbg(x...) cerr << "\e[91m"<<__func__<<":"<<__LINE__<<" [" << #x << "] = ["; _print(x); cerr << "\e[39m" << endl;
#else
#define dbg(x...)
// #define cin fin
// #define cout fout
// const string FILE_NAME = "bank";
// ifstream fin(FILE_NAME + ".in");
// ofstream fout(FILE_NAME + ".out");
#endif
#define f first
#define s second
#define nl '\n'
typedef long long ll;
const int mxN = 5e3;
const int MOD = 1e9 + 7;
void solve(){
int n, m;
cin >> n >> m;
vector<int> a(n), b(m);
for(int i = 0; i < n; ++i)
cin >> a[i];
for(int j = 0; j < n; ++j)
cin >> b[j];
vector<int> people_covered(1 << m, -1), leftover(1 << m, -1);
people_covered[0] = 0;
leftover[0] = 0;
for(int mask = 1; mask < 1 << m; ++mask){
for(int i = 0; i < m; ++i){
if(!(mask & (1 << i))) continue;
int prev = mask & ~(1 << i);
int cur_sum = leftover[prev] + b[i];
int target = a[people_covered[prev]];
if(cur_sum < target){
leftover[mask] = cur_sum;
people_covered[mask] = people_covered[prev];
}
else if(cur_sum == target){
leftover[mask] = 0;
people_covered[mask] = people_covered[prev] + 1;
}
}
if(people_covered[mask] == n){
cout << "YES\n";
return;
}
}
cout << "NO\n";
}
int main(){
ios::sync_with_stdio(false);
cin.tie(NULL);
int TC = 1;
// cin >> TC;
while(TC--){
solve();
}
return 0;
}
