#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (n); ++i)
using namespace std;
using ll = long long;

int main() {
    ll X, Y, Z;
    cin >> X >> Y >> Z;
    if ((X + Y + Z) % 3 == 0) {
        cout << "Yes" << endl;
    } else {
        cout << "No" << endl;
    }

    return 0;
}