#include<stdio.h>
#include<iostream>
using namespace std;
int main (){
    int n,k;
    cin >> n >> k;
    int turn = 0;
    for(int i=0; i<n; i++){
        int a;
        cin >> a;
        if ( a == 0 ) ;
        else if ( a <= k ) turn ++;
        else if ( a % k > 1 ) turn += a / k + 2;
        else if ( a % k == 1) turn += a / k + 1;
        else turn += a / k ;
    }
    if ( turn % 2 == 0 ) cout << "NO" << endl;
    else cout << "YES" << endl;
    return 0;
}