#include<cstring>
#include<string>
#include<vector>
#include<iostream>
#include<cstdio>
#include<cstdlib>
#include<stack>
#include<queue>
#include<cmath>
#include<algorithm>
#include<list>
#include<set>
#include<map>
#include<complex>
#include<sstream>
#include<climits>
#define rep(X,Y) for (int (X) = 0;(X) < (Y);++(X))
#define rrep(X,Y) for (int (X) = (Y)-1;(X) >=0;--(X))
#define all(X) (X).begin(),(X).end()
#define pb push_back
#define mk make_pair
#define fi first
#define sc second
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
const int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1};

const int MAX_N = 1e6, MAX_A = 1e6;

int n, k;
int a[MAX_N];

int grendy[MAX_A+1];


int main() {
  cin >> n >> k;
  rep(i,n) cin >> a[i];

  grendy[0] = 0;

  int max_a = *max_element(a, a+n);

  for (int j = 1; j <= max_a; ++j) {
    set<int> s;
    for (int i = 1; i <= k; ++i) {
      if (i <= j) s.insert(grendy[j - i]);
    }

    int g = 0;
    while (s.count(g) != 0) ++g;
    grendy[j] = g;
  }

  int win = 0;
  for (int i = 0; i < n; ++i) win ^= grendy[a[i]];

  if (win != 0) puts("YES");
  else puts("NO");

  return 0;
}