#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: wangyiyang
	Language: C++
	Result: Accepted
	Time:46 ms
	Memory:2072 kb
****************************************************************/