#include <stdio.h>
int main(void){
     int i;
     int N,K;
     int result;       //奇数：勝ち,偶数:負け
     scanf("%d%d",&N,&K);
     int A[1000];

     for(i=0;i<N;i++){
         scanf("%d",&A[i]);
         if(A[i]%(K+1) != 0 ){
         result =result+1;
         }
     }
     
     if(result%2 ==1)
          printf("YES\n");
     else
          printf("NO\n");
}