#define _USE_MATH_DEFINES #include <algorithm> #include <cstdio> #include <functional> #include <iostream> #include <cfloat> #include <climits> #include <cstring> #include <cmath> #include <map> #include <queue> #include <set> #include <sstream> #include <stack> #include <string> #include <time.h> #include <vector> using namespace std; typedef long long ll; typedef unsigned long long ull; typedef pair<int, int> i_i; typedef pair<ll, int> ll_i; typedef pair<double, int> d_i; typedef pair<ll, ll> ll_ll; typedef pair<double, double> d_d; struct edge { int u, v; ll w; }; ll MOD = 1000000007; ll _MOD = 1000000009; double EPS = 1e-10; bool check(int N, int M) { return (N * M == 2) || (N % 2 == 0 && M > 1) || (M % 2 == 0 && N > 1); } int main() { int N, M, C; cin >> N >> M >> C; cout << (check(N, M) ? "YES" : "NO") << endl; }