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

int main() {
    long n, m;
	    cin >> n >> m;
	    int judge = 0;
	    for(int i = 0; i <= n; i++) {
	        for(int j = 0; j <= m; j++) {
	            if(i * 100 + j * 10 == (n - i) * 100 + (m - j) * 10) {
	                judge++;
	            }
	        }
	    }
	    if(judge != 0) {
	        cout << "Yes" << endl;
	    } else {
	        cout << "No" << endl;
	    }
}