# include # include # include # include # include # include # include # include # include # include # include # include # include # include # include #include #include #include #include #include using namespace std; typedef long long ll; typedef unsigned long long ull; const int N = 1000000; const int mod = 1000000007; const int INF = 1 << 30; #define rep(i,n) for(ll i=(ll)0;i<(ll)n;++i) #define ALL(x) x.begin(),x.end() #define pp pair #define fi first #define se second #define pb push_back #define fix(n) fixed<::iterator int dx[4] = { 0,1,0,-1 }, dy[4] = { 1,0,-1,0 }; string YN(bool b) { return(b ? "YES" : "NO"); } string yn(bool b) { return(b ? "Yes" : "No"); } ll a, b; bool fl = 0; void dfs(ll n, ll m) { if (fl)return; if (n == a && m == b) { fl = 1; return; } if (n == a && m != b)return; if (n != a && m == b)return; dfs(n * 2, m + 1); dfs(n + 1, m * 2); } int main() { cin >> a >> b; dfs(0,0); cout << yn(fl) << endl; return 0; }