#include <iostream>
using namespace std;
int main(){
    int a,b;cin>>a>>b;
    if(a>b)swap(a,b);
    bool ok = a==b;
    if(b==1)b=3;
    while(b%2==0)b/=2;
    if(a==1 && b==1)ok = true;
    cout << (ok?"Yes":"No") << endl;
}