#include <bits/stdc++.h>
using namespace std;
int main() {
  vector<int> grundies;
  grundies.push_back(0);
  for (int i = 1; i <= 60; i++) {
    long long accum = 0;
    long long add = 0;
    while (accum < i) {
      accum += add;
      add++;
    }
    if (accum > i) {
      add--;
      accum -= add;
    }
    add--;
    grundies.push_back(add);
  }
  long long numPiles;
  cin >> numPiles;
  long long finalState = 0;
  for (long long i = 0; i < numPiles; i++) {
    long long pile;
    cin >> pile;
    finalState = finalState ^ grundies[pile];
  }
  if (!finalState) cout << "YES" << endl;
  if (finalState) cout << "NO" << endl;
  return 0;
}
