#include <bits/stdc++.h>
using namespace std;
int main(){
    int n,m,h=0,h2=0;
    cin>>n>>m;
    for(int y=1;y<=n;y++){
        if(n%y==0){
            h+=y;
            h+=n/y;
        }
    }
    for(int i=1;i<=m;i++){
        if(m%i==0){
            h2+=i;
            h2+=m/i;
        }
    }
    if(h==h2){
        cout<<"yes";
    }else{
        cout<<"no";
    }
}
/**************************************************************
	Problem: 1862
	User: yangjunwen
	Language: C++
	Result: Accepted
	Time:45 ms
	Memory:2072 kb
****************************************************************/