#include <bits/stdc++.h>
using namespace std;
void fastIO(){ios_base::sync_with_stdio(false),cin.tie(0);}
#define int long long
int numPeople, numNotes;
int people[21], notes[21];
int idxSS[1 << 21], valSS[1 << 21];
bool ans = false;
signed main() {
fastIO();
cin >> numPeople >> numNotes;
for (int i = 0; i < numPeople; i++) {
cin >> people[i];
}
for (int i = 0; i < numNotes; i++) {
cin >> notes[i];
}
idxSS[0] = 0;
for (int mask = 0; mask < (1 << numNotes); mask++) {
for (int note = 0; note < numNotes; note++) {
if (mask&(1 << note)) continue;
int idx = idxSS[mask];
if (idx < numPeople && people[idx] == valSS[mask] + notes[note] && idxSS[mask | (1 << note)] <= idxSS[mask] + 1) {
idxSS[mask | (1 << note)] = idxSS[mask] + 1;
valSS[mask | (1 << note)] = 0;
}
else if (idxSS[mask | (1 << note)] <= idxSS[mask]) {
idxSS[mask | (1 << note)] = idxSS[mask];
valSS[mask | (1 << note)] = valSS[mask] + notes[note];
}
}
}
for (int mask = 0; mask < (1 << numNotes); mask++) {
if (idxSS[mask] == numPeople) {
ans = true;
}
}
cout << (ans ? "YES" : "NO") << "\n";
}
