#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <set>
#include <atcoder/modint>

using namespace std;
using i32 = int32_t;
using u32 = uint32_t;
using i64 = int64_t;
using u64 = uint64_t;
#define rep(i,n) for(int i=0; i<(int)(n); i++)


const i64 INF = 1001001001001001001;
using modint = atcoder::static_modint<998244353>;



int main(){
    int N,X,M; cin >> N >> X >> M;
    vector<int> A(N); rep(i,N) cin >> A[i];
    i64 Q = 0;
    int q = 0;
    for(int i=N-1; i>=0; i--){
        while(X <= A[i] >> q) q++;
        Q += q;
    }
    cout << ((M < Q) ? "No\n" : "Yes\n");
    return 0;
}


struct ios_do_not_sync{
    ios_do_not_sync(){
        std::ios::sync_with_stdio(false);
        std::cin.tie(nullptr);
    }
} ios_do_not_sync_instance;