#include <bits/stdc++.h>
using namespace std;
vector<string> a, b;
int n, m, k;
string s;
int main() {
  cin >> n >> m;
  for (int i = 0; i < n; ++i) {
    cin >> s;
    a.push_back(s);
  }
  for (int i = 0; i < m; ++i) {
    cin >> s;
    b.push_back(s);
  }
  for (int i = 0; i < n; ++i) {
    for (int j = 0; j < m; ++j) {
      if (a[i] == b[j]) ++k;
    }
  }
  if (k % 2 == 0) {
    if (n > m)
      cout << "YES";
    else
      cout << "NO";
  } else {
    if (n >= m)
      cout << "YES";
    else
      cout << "NO";
  }
}
