#include <bits/stdc++.h>
using namespace std;

#define INF_LL (int64)1e18
#define INF (int32)1e9
#define REP(i, n) for(int i = 0;i < (n);i++)
#define FOR(i, a, b) for(int i = (a);i < (b);i++)
#define all(x) x.begin(),x.end()
#define fs first
#define sc second

using int32 = int_fast32_t;
using uint32 = uint_fast32_t;
using int64 = int_fast64_t;
using uint64 = uint_fast64_t;
using PII = pair<int32, int32>;
using PLL = pair<int64, int64>;

const double eps = 1e-10;

template<typename A, typename B>inline void chmin(A &a, B b){if(a > b) a = b;}
template<typename A, typename B>inline void chmax(A &a, B b){if(a < b) a = b;}

using PDI = pair<double, int32>;

const int64 mod = 1e9+7;

map<PLL, int32> mp;

int32 ok(int64 A, int64 B){
	if(A == 0 && B == 0) return 1;
	if(A > B) swap(A, B);
	if(mp[PLL(A, B)] > 0) return mp[PLL(A, B)]==1;
	bool ret = 0;
	if(B > 0 && A%2 == 0) ret |= ok(A/2, B-1);
	if(ret) return mp[PLL(A, B)] = 1;
	if(B%2 == 0 && A > 0) ret |= ok(A-1, B/2);
	if(ret) return mp[PLL(A, B)] = 1;
	else return mp[PLL(A, B)] = 2;
}

int main(void){
	int64 A, B;
	cin >> A >> B;
	

	cout << (A%2&&B%2 ? "No" : "Yes") << endl;
}