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

int main() {
    int 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;
    }
}