#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

int main() {
  int h, w, c;
  cin >> h >> w >> c;
  if (h == 1 || w == 1) {
    cout << (h * w == 2 ? "YES" : "NO") << endl;
  }
  else {
    cout << (h % 2 == 0 || w % 2 == 0 ? "YES" : "NO") << endl;
  }
  return 0;
}