#include <bits/stdc++.h>
using namespace std;
#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
int dx[] = {1, -1, 0, 0};
int dy[] = {0, 0, 1, -1};
#define pb push_back
#define int long long
#define no "NO\n"
#define yes "YES\n"
#define ew "\n"
#define all(x) x.begin(), x.end()
#define F first
#define S second
#define float long double
#define len(x) (int)x.size()
#define macvin \
ios_base::sync_with_stdio(0); \
cin.tie(0); \
cout.tie(0);
using pii = pair<int, int>;
using ld = long double;
const int N = 2e6 + 7;
const int mod = 1e9 + 7;
const int inf = 1e18 + 7;
const int hh = 1e2 + 70;
const int MAX = 200007;
const int maxn = 1e6 + 7;
int n, q;
int a[N], b[N];
int used[N];
int pref[N];
bool solveeed = 0;
void cdq(int l, int r, int x)
{
if (l >= r)
{
return;
}
if (pref[r] - pref[l - 1] == x)
{
solveeed = 1;
return;
}
int md = (l + r) / 2;
cdq(l, md, x);
cdq(md + 1, r, x);
}
void iamgoingto10of10()
{
cin >> n >> q;
for (int i = 1; i <= n; i++)
{
cin >> a[i];
}
for (int i = 1; i <= q; i++)
{
cin >> b[i];
pref[i] = pref[i - 1] + b[i];
}
bool ans = 1;
for (int i = 1; i <= n; i++)
{
solveeed = 0;
cdq(1, n, a[i]);
if (!solveeed)
{
ans = 0;
}
}
if (ans)
{
cout << yes;
}
else
{
cout << no;
}
}
signed main()
{
macvin int T = 1;
// cin >> T;
while (T--)
{
iamgoingto10of10();
}
}
/*
⣿⣿⣿⣿⣿⣿⠂⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣀⣠⣤⣤⠤⠤⠀⠒⠶⣀⠀⠀⠀⠈⣿⣿⣿⡿⠁
⣿⣿⣿⣿⣿⡗⠈⠀⠀⠀⣠⢀⣀⠀⣀⠀⢀⡀⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠶⠚⣛⣉⠠⠀⣄⣀⠀⠀⠀⠀⠀⠀⠀⢿⣿⡿⠁⠀
⠹⣯⢼⣿⣿⣿⠀⠀⣰⣷⢴⠳⠟⠛⠙⢻⣛⣟⣓⡋⠢⠀⢀⠀⠀⠀⠀⠀⠀⠀⠠⣪⢵⣶⣶⣶⠦⣌⡙⠀⠀⠀⠀⠀⠀⢸⣿⠃⠀⠀
⠀⣿⣼⡟⣿⣿⠀⢀⠢⠁⠀⣰⣜⣿⢿⣿⠿⢿⠟⢕⠢⠀⠃⠀⠀⠀⠀⠀⠀⠀⠐⠁⠈⠒⠒⠁⠀⠈⠅⠀⠀⠀⠀⠀⠀⡘⠟⢀⠀⠀
⠲⣿⢧⡃⣽⣿⠂⠀⠀⠀⠀⠉⠟⠉⠠⠈⠁⠀⠀⠀⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠺⠀⠀⠀⠀
⠀⡹⠸⣇⢸⣿⡅⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡄⠆⠀⠀⠀
⢠⡇⠀⣿⡘⢿⣧⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡇⠀⠀⠀⠀
⣼⣯⡈⠈⢯⠎⠻⡜⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡀⠀⠀
⣿⣷⣿⣆⢘⣆⠀⣷⢁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣷⠮⠁⠀⠀
⣿⣿⣿⣿⣶⣌⠦⣜⡏⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡄⠀⣀⡄⠀⠀⠀⣰⣤⡠⠂⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠐⢋⠄⠀⢀⢠
⣿⣿⣿⣿⣿⣿⣷⣎⣗⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠙⢛⠙⠛⡈⠀⠜⠈⠈⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡂⢠⡴⣏⢧
⣿⣿⣿⣿⣿⣿⣿⣿⣿⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣷⢿⡱⣏⠖
⣿⣿⣿⣿⣿⣿⣿⣿⣿⡇⠀⠀⠀⠀⠀⠀⠀⠀⠠⢤⣤⣤⣤⣄⣀⣠⣀⣠⠶⠴⠦⠤⠒⠋⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⡿⣏⠷⠈⠌
⠀⠌⠙⠻⣿⣿⣿⣿⣿⣧⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢺⠟⠀⠀⠀⠀
⠀⠀⠀⠀⢉⠻⣿⣿⣿⣿⣧⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢠⠀⡈⠇⠀⠀⠀⠀
⠀⠀⠀⠀⠈⠉⠙⠻⢿⣿⣿⣷⣄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⠔⠇⢠⠃⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⢠⣿⣿⣿⣿⣿⣦⡀⢀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡠⠊⠁⠀⢠⠎⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⢠⣿⣿⣿⣿⣿⢹⣿⣞⡄⡀⠄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡠⠎⠀⠀⣀⠔⠁⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⣼⣿⣿⣿⣿⣿⣈⢻⣿⣧⣗⣤⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡠⢖⡡⠔⣠⡰⠋⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⣼⣿⡏⠈⣿⡿⠁⠀⠀⠽⢿⣿⣾⣽⡷⣦⢤⡀⡄⣀⠀⡀⡀⠄⠔⣒⢱⣜⣮⡴⠚⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⣾⣿⣿⡇⠀⢿⠁⠀⠀⠀⠀⠈⠙⣿⣿⣿⣿⣯⣷⡬⣫⡀⡱⣀⣖⣼⣾⣿⠟⠋⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠻⡟⠙⡷⠀⠈⠀⠀⠀⠀⠀⠀⠀⠀⠙⠿⣿⣿⣿⣿⣷⣿⣿⣿⣿⠿⠋⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⡇⠀⠀⠀⠀⠀⠀⠀⠀⠈⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠉⣻⣟⢿⣿⠟⣋⡀⠀⠀⠀⠀⢀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠹⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣠⡾⢛⣽⣴⢴⣟⢙⣿⣦⡙⠑⠓⠙⠃⠃⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
*/
