//#define _GLIBCXX_DEBUG
#include <bits/stdc++.h>

using namespace std;

using ll = long long;
using ld = long double;
using ull = unsigned long long;
using uint = unsigned;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

template<class T> using pq = priority_queue<T, vector<T>, greater<T>>;

const int MOD = 1000000007;
const int MODD =  998244353;

const ll dx[] = {0, 1, 0, -1, 1, -1, 1, -1};
const ll dy[] = {1, 0, -1, 0, 1, 1, -1, -1};

#define overload4(_1, _2, _3, _4, name, ...) name
#define overload3(_1, _2, _3, name, ...) name
#define rep1(n) for(ll i = 0; i < (ll)(n); i++)
#define rep2(i, n) for(ll i = 0; i < (ll)(n); i++)
#define rep3(i, a, b) for(ll i = (ll)(a); i < (ll)(b); i++)
#define rep4(i, a, b, c) for(ll i = (ll)(a); i < (ll)(b); i += (ll)(c))
#define rep(...) overload4(__VA_ARGS__, rep4, rep3, rep2, rep1)(__VA_ARGS__)
#define rrep1(n) for(ll i = (ll)(n); i > (ll)(0); i--)
#define rrep2(i, n) for(ll i = (ll)(n); i > (ll)(0); i--)
#define rrep3(i, a, b) for(ll i = (ll)(a); i > (ll)(b); i--)
#define rrep4(i, a, b, c) for(ll i = (ll)(a); i > (ll)(b); i -= (ll)(c))
#define rrep(...) overload4(__VA_ARGS__, rrep4, rrep3, rrep2, rrep1)(__VA_ARGS__)

#define all(v) v.begin(), v.end()
#define elif else if
#define eb emplace_back
#define mp make_pair
#define mt make_tuple
#define fi first
#define se second
#define stoi stoll

#define MIN(v) *min_element(all(v))
#define MAX(v) *max_element(all(v))

int main(){
  ll N, M, L; cin >> N >> M >> L;
  vector<ll> A(N);
  rep(N) cin >> A[i];
  vector<vector<bool>> dp(110, vector<bool>(1100, false));
  dp[0][L] = true;
  rep(i, N)rep(j, 1, 1001){
    if(dp[i][j] == false) continue;
    dp[i+1][j] = dp[i+1][(j+A[i])/2] = true;
  }
  cout << (dp[N][M] ? "Yes" : "No") << endl;
  return 0;
}