#include "bits/stdc++.h" #define int long long using namespace std; using ll = long long; using P = pair; const ll INF = (1LL << 61); ll mod = 1000000007; signed main() { ios::sync_with_stdio(false); cin.tie(0); int A, B, C, D, E, F; cin >> A >> B >> C >> D >> E >> F; int G; cin >> G; if (500 * A + 100 * B + 50 * C + 10 * D + 5 * E + F == G) { cout << "YES" << endl; } else cout << "NO" << endl; return 0; }