#include <bits/stdc++.h>
#define SPED \
ios_base::sync_with_stdio(false); \
cin.tie(0); \
cout.tie(0);
#define endl "\n"
#define fi first
#define se second
#define lint long long
#define fami signed
#define lore main
#define freefire freopen
const lint INF = 1e15;
using namespace std;
int m, n;
lint a[25], b[25];
bitset<(1 << 20) + 5> dp[21];
fami lore()
{
SPED;
cin >> m >> n;
for (int i = 1; i <= m; i++)
{
cin >> a[i];
a[i] += a[i - 1];
}
for (int i = 0; i < n; i++)
cin >> b[i];
for (int mask = 0; mask < (1 << n); mask++)
dp[0][mask] = true;
for (int mask = 1; mask < (1 << n); mask++)
{
lint sum = 0;
for (int i = 0; i < n; i++)
if (mask >> i & 1)
sum += b[i];
int idx = -1;
for (int i = 0; i <= m; i++)
{
if (sum == a[i])
{
idx = i;
break;
}
}
if (idx != -1 and dp[idx - 1][mask] == true)
dp[idx][mask] = true;
for (int i = 0; i < n; i++)
if (!(mask >> i & 1))
for (int j = 1; j <= m; j++)
dp[j][mask | (1 << i)] = dp[j][mask | (1 << i)] | dp[j][mask];
}
cout << (dp[m][(1 << n) - 1] ? "YES" : "NO");
}
// Let your soul wander where dreams are born.
